Weird dream

So in the dream there was a friend, who had a business selling old jewelry online that he got from garage sales. Then one day he calls me, he has gotten a batch with several items worth ten times its most expensive sale, so he asks me find and install a safe box, security service, cameras. So I help him. Then some weeks later he calls me, someone tried to steal his house and I need to go to his house to do a backup of the video and install a second recorder, since the police is taking the one installed for evidence purposes. As I arrive, I see this was not a regular robbery, lots of cops, forensics, so I go and I’m asked to go with one forensics technician. So while I backup the footage, he asks me to see the video with him, so I watch and here is what we see. 3 robbers enter the house, alarms are sent to security company, the 3 robber go directly to the room where the safe-box is and two start working on it, one stands watching. Suudenly a dog enters into the frame and jumps into one of the two robbers by the safe-box. The one standing goes to help his partner, kicks the dog, and when he manages to pull the dog away from his partner shoots him. The attacked robber extends his arm to the one with the gun, who helps him stand up, and suddenly the attacked robber pushes a screwdriver through the robber neck, takes the gun from his hands, shoots the other robber and then faints. The technician tells me that he died from the dog bite to the neck, blood loss. That scene is a bit weird, more so because my friend has no dog. So I sign that I have made a backup, and a receipt for the equipment taken. Couple of days later I’m called to the police station to rewatch the video and sign a paper saying it’s the same I saw that night, paperwork. Couple of days later my friend tells me that he has been cleared, but the police will continue to investigate. Then some weeks later my friends calls me, his voice sounds a bit nervous. Asks me to go to his house. It is a two story house. So we go to second floor, and the stand by the door of the room where the safe is. Asks me to take note of the time, 7:15. He opens the door but instead of the room I know its there, there is a different room, no windows, just a stair to a third floor. I think nothing, perhaps my friend has decided to do some construction work, to move the room where 3 people and a dog died, but I didn’t noticed a new 3rd floor from the street, well maybe its because this room is facing the back garden. So my friend goes up the stairs, that do kind of a U turn as you go up. There is a hallway, one door on each of the side walls, a door at the end. My friend opens one of the side doors, to reveal a wall, It’s a fake door, and tells me the one on the other side is the same. Then we walk and open the door at the end, there is the room with the safebox, identical. But there is a problem, when I look through the windows, instead of seeing the a view to the front street, or his house roof, I see his back garden, and the height is consistent to a second floor window. That’s weird. Then my friend asks me to check the time, 7:16. He just says, - we’ll check when we go back - , but that puts me thinking, for sure that was more than one minute. We go back to the hallway down the stairs and my friends asks me to wait here while he starts to tell me. The police told him after watching all footage, the only video the dog shows its when it attacks the robbers, he doesn’t show in any of the cameras around the house before. Also the 3 robbers, they had no priors, never been linked to any robbery or other crime. Each had a regular job, and from questions to the families they apparently had never met, nothing in common. That hey had no clue where to go next. He kept telling me other details mostly about paperwork he had to do, when he stopped and asked me. - Without watching your watch, would you say we have been talking for about 5 minutes? - Sure – I answer He opens the door to the rest of the second floor, and as son as I am outside the new room, he tells me to check my watch. 7:17 - Something is wrong, we have been there talking for at least 5 minutes. - Indeed its weird, and if you watch the video recorder you will see that there is no time loss between when we open the door on the second floor, and enter the safe-box room that is now apparently on the third floor. Its as if that new room and hallway doesn’t exist, as if time inside there also doesn’t exist. - But that’s impossible. - Actually what is impossible, is that those new room and hallway, weren’t there last night, they appeared out of nowhere, none build them. - Are you telling me you didn’t ?? - Yes, I did not build them or hired anyone to do such work, they just appeared there, now lets go to the back garden. There another weird view was waiting us, for indeed the house remain only two floors tall, and from the garden I could see bits of the safebox room inside its windows, there, on the second floor. I asked him if he has called the police to tell me, He said he didn’t know what to call them for. They for sure would think he did the renovations. And sure you can see from the outside there is something wrong. I told him to call them anyway, and also a contractor, to check on the extra building. I went home confused, what could be happening there. My friend called me two days later to go to his house, with him was one police inspector. We went to where usually was the safe-box room, the new room with the stairs remained there, it went to the same hallway, but when we opened the new location for the safe-box room, it wasn’t there, instead there was another room with a stair. Another hallway was at the now fourth floor, we walked to the door at the end, and that one opened to the safe-box room. You could see the surprise on the inspector face, and even more when my friend told him to check his watch. He told us how weird that was, he didn’t know what kind of forensics expert to call, but he would check and schedule a visit. Two days later I was called again, the inspector was with one forensic advisor, and a contractor. Problem was, this time the room was in the fifth floor. Among the weird thing they found was that the cables connecting the safe room to the rest of the second floor, appeared to be separated only by the width of the wall, That if you made a whole in vicinity to the door connecting second floor and safe-box room, you saw the empty stair room or hallway on the other side, but if you do it at a certain distance, you actually saw the safe-room box, or the second floor area. And if you look out of the windows, throw something, from the ack garden, that window was on the second floor. Everyone was confused, neither the contractor nor advisor couldn´t give any start of explanation. He told us he would contact some-one from the local university to come again and look at it. After they left my friend told me he was worried about the contents of the safe box, I put him in contact with a couple of people at banks and safe storage solutions, so he could find an external safe-box to his liking and budget. Two days later he called me in panic, another tragedy happened. I arrived almost at the same time as the first police officers, I managed to see one man being entered into an ambulance, he was missing one arm. My friend told me and the detective that since early morning a team from the university was putting sensors, and cameras in the hallways, but when they started working around the safe-box suddenly another dog appeared out of nowhere, attacked one man, this time the arm, it was vicious, it tore the arm apart. This time the other people both tried to pull the dog away and his coworker out of the room, as soon as the attacked man was out, the dog vanished, disappeared. I was all on video, both in the University cams, and the security system. Things were weird. Chaos everywhere. Evidence on the room, confirmed what we saw on the videos, a dog attacked a human, so viciously it tore the arm apart, blood was everywhere, along with dog fur. Yet the dog was nowhere.