I had a dream/nightmare, in that dream I was a forensic police officer trying to solve a murder, the murder victim was a young girl with the darkest, blackest, biggest eyes I have ever seen. This girl would speak to me every now and then and follow me around, I would see her every now and then and she would startle me, then upon a second look she would be gone, I felt that she was not a threat, but there was something that made me uneasy about her, especially her eyes. The entire dream took place in a nice and fairly large house with a curved stair case. I recall sitting on the staircase for hours at a time looking at the wall (also curved to match the staircase- curved around the staircase) somehow I knew that the girl with the black eyes was murdered there and I had to help her, after staring at the wall and examining it from top to bottom I discovered a blood spot on it near the bottom of the wall about 3 or 4 stairs from the top. I recall thinking how stupid I was for not noticing it earlier and that this would definitely help me out. I put a figurine of an elephant on the floor with its trunk pointing to the blood spot so I could find it when I came back and I left to go get something to help me analyze the blood spot. When I came back the blood spot was gone, but the elephant figurine was still pointing at the blank wall. I felt as if the dark eyed girl's killer was close at hand but was not able to figure out who it was, I felt as if this person was toying with me. The dark eyed girl did not appear to me but I could hear a voice and it warned that the killer is closer than I may think and to be wary of everything as if I would be examining a murder scene. Also in the dream was my brother and my dad, my brother was not at all himself, miserable and unhappy, I got the feeling he knew something about this murder I was trying to solve, but could not tell me, I also recall a conversation in the dream where I asked my brother if there was anything at all he knew, he could tell me, he would be safe and I wanted to use the information he knew to help our mom. (Our mom was not in the dream, but I felt something bad was going to happen to her and if I could solve the murder I could prevent whatever bad thing was going to happen to her.) As I was leaving after trying to discuss this with my brother (with no positive results), I passed my dad, he seemed empty and cold, never said anything to me and acted as if I never existed, and walked right past me into the room my brother was in. This room was at the bottom of the curved staircase, as I walked past my dad and closer to the base of the staircase I could see the dark eyed girl standing at the top of the stair case, just staring at something, not at me, but through me or behind me. I remember being worried, and scared that the killer would come after me for following the clues in the dark eyed girls’ murder, that he did not want me to bring him to justice.
This dream has been bothering me and has re-occurred several nights in a row now. I cannot begin to fathom its meaning, but it would really put me at ease if I knew what it meant.
Thanks

Does the girl remind you of someone you know in real life? She could symbolize a severed relationship--something that has "died" in a figurative sense. She could also represent a part of yourself that's dead, a part that you'd like to bring back and make a discovery about yourself to determine what "killed" this part of yourself. This part makes you uneasy but is no threat to you. Who would this part of yourself be a threat to?

The dream may also be about family. There's the part about something bad happening to your mother and your dad being cold and your brother depressed. Does this sound like your family in reality? Is it "killing" you inside? The girl you are trying to solve the murder of may be yourself. Are you female?

I noticed you were quick to point out that it was not at all like your brother to be depressed in real life, but when you mentioned your dad being cold and distant, you didn't say anything about him being different from that characterization in real life. Is that what your dad is like? If so, given the fact that the setting is a 'family home' and you are worried about your mom even though she doesn't appear in the dream, I'd say the dream is most likely about your family dynamics. Are you worried your dad is killing your mom's spirit in some way? Maybe you know this, but can't find evidence of it. I've been through this too. My dad was horrible to live with growing up and I tried to convince my mom to get a divorce. I didn't feel she was safe, although most of the fighting happened when I was around. Still, everyone that knew my dad outside the home probably thought he was a great guy. There was no obvious evidence to tip outsiders off that he could be quite mean to his family inside the home.