Possible twist on the original idea?

Hi everyone,

I'm aware that I'm the "new guy" so I'm not wanting to mess with the ideas that the group already had too much.

I had been thinking the story over all week, though, and an idea came to me which I quite like.  If you think it sucks don't worry about hurting my feelings!

Basically, I feel if the story starts, as discussed, with a young boy discovering his father dead, we are then brought forward in time, somehow, to the point where the boy is now a young man, and a detective, tracking his father's killer.

WHAT IF!....the whole "detective story" is revealed to be a fantasy that the the young boy is having.  In reality, his Dad died of natural causes, but it's easier for the boy to imagine an assasin than come to terms with the death?

We could still have a large detective story going on, but a lot of the trouble we were having resolving that could be taken away if the boy is just "shocked" out of the fantasy somehow.

I had a go at writing a quick treatment, but it doesn't go into any detail on the exposition of the plot, I need to work on that:

Brief Outline

A young boy finds his Father dead, we flash forward to the boy now a young man and working as a detective tracking his father's killer, a shadowy assassin. It is revealed that the the whole detective storyline is a fantasy created by the boy, whose father in reality died of natural causes. The detective fantasy is the boy's childlike way of trying to comprehend and understand death.

Brief Character Outline

Boy (as boy) – naïve, idealistic, prone to childish fantasy

Boy (as young man)  - Tough, street smart, bitter, strong (exaggerated strength as this is a boy's fantasy)

Assassin – One dimensional, pure evil, silent, ninja like, dressed in black/darkness. (His name is C (cancer) or HD (heart disease) or NC (natural causes).

Father – Warm, loving, playful

Female Doctor – Authorative, kind, maternal.

Genre – Melodramatic Thriller?!

Like I said, if you guys think it sucks or is cheesy or whatever, that's cool, just wanted to pitch in with an idea.