Dream of friends, person, toilet

Me and a group of close friends, were in a overgrown back garden rigged with tripwires, we go to the end to find a small box with a sim card inside, we figure out it was a key that opened a door but the door needed two. So after searching for a minute I see an out of place plank of wood, I tear it open and it reveals another door that only needs one key. We open it to discover that it opens another door leading to the next garden. The garden is the garden of my house. One of my friends sits on a chair and the rest disappear. I need to go to the toilet so start walking to my door, before I open the door, I look into the window that belongs to my room. A man is there just staring at us all not even blinking. There are knives on the table I throw a few at him but only two hit him, causing his body to explode into black and red static. He then forms back to himself again. I then see him walk away from the window. I hear him open the door then walk down the stairs. As soon as I hear him walk down the stairs I lock the door. He begins walking toward the door and as soon as he reaches it, he crouches down and pulls a key from his mouth and unlocks the door. he then proceeds to walk towards me flailing his arms. I soon realise that he can't harm me, but I reach to the table to grab two knives one a normal carving knife and the other a butcher's knife. With the carving knife I stab his arm and with the butchers knife I start slicing at his arm. He then bursts back in the black and red static. He then turns into a man holding a giant tree axe, he still cant harm me so I stab him again in the arm. He turns back into the black static again and then turns into one last person. I then stab him three more times and then he turns into static one last time