A dark figure

so first with this being my first entry, i am just going to say that all my dreams (at least the ones i remember) are always nightmares or i wake up with a "dark" or uncomfortable feeling. anyway, to start this nightmare off, EVERYTHING in my dream was the same way it is in real life. nothing was out of place or a different color so that is why this one stands out to me more than most of my dreams. so i am downstairs in my living room standing with a detective. its night time and all the lights are off but the house has a creepy dim lighting coming from the full moon. i am just following the detective downstairs around my house and we walk to the bottom of my stairs, and from there i do not see him, but the point of view changes to the supposed killer in the house who is standing upstairs looking down on us even though the detective and i are aware. anyway we go into the living room where the detective opens the door that leads into my laundry room and there is blood everywhere, the washer/dryer, door, floor, walls etc. surprisingly i was not really concerned because i had the detective with me so we just closed the door and went back into the living room. the living room leads into the kitchen and i go into it and turn my back to the detective for a second, then when i turned back around he was gone. so i walk out and look around the wall that separates the living room from the kitchen and the detective was lying on the ground dead. that is when i start to feel a bit uneasy. so i walk upstairs and turn to the right where there are 4 rooms: my dads office, my room, my 8yr old sisters room, and the bathroom. anyway my sisters room is pretty much right infront of you when you turn right from the stairs, and she has a window directly across the room from the her door. so i am upstairs and i see a dark figure (because the window is lighting the room from behind the figure) and the person is suspended in the air in the doorway. i take a few steps closer and i realize its my little sister who is hanged from the doorway (but i never see details of the face) which is when i panick, turn around, and the killer (who is also a dark faceless figure) is right behind me and i wake up with the understanding that when i turned around i was killed.