Bad dream- Found dead body and hid it...what does it mean?

In my dream I am just waking up and stepping outside to smoke. The neighborhood is residential and its a sunny morning (in my dream its my neighborhood, but in real life its not). I look up at the house across the street and realize 1.-I know who the occupants are (a friend from work) and 2. That the home is completely empty and windows open from a burglary. I begin to get a nervous feeling, and find myself looking around the street. Still standing in my driveway next to our red car (which is totally different than our car in real life) Im looking in our yard and we have a huge tree (one that looks familiar to me from my childhood home) Under the tree there is a naked body. I run over to look closer. I notice the woman and I recognize her though it has no significance in my dream. The woman is Jane Lynch (actress from glee/40 year old virgin) She is dead, and cold, very white and pale. Her body is chopped in half at her waist and her guts are trailing out. There is no blood though. I suddenly get this overwhelming feeling to pick up the body and hide it. I go get a large plastic grocery bag (the very kind I keep at home from our local store) and begin frantically shoving her into a bag. Just as I am finishing up I hear a car coming down the street. The car pulls into a drive way and I know it is a neighbor though I dont recognize him. He is dressed in a business suit and very handsome, I get a charismatic feeling from him, like he is very smooth. He gets out and before opening his door he offers to help me with my bag. I become consumed by fear and realize he is the killer of this woman. I begin to rush into the house and up the stairs, as I am doing this he knows that I know he is the killer and he tackles me and starts to strangle me. He pulls out a small knife and says (verbatim) “Do you see this little knife? Its small I know, but I am going to use it to cut your head off in exactly one hundred stokes” Even though I am consumed by fear I feel an attraction to him and I can smell his cologne. I begin to open my mouth to scream for my fiance who is asleep in the bed and I wake up….Wierd. I am looking for an interpretation to this dream…Why would I dream it?