Actually, I always think this story will be a really good movie if at the end everything turns out to be Cloud's imagination. There is no such "Stone" exist. Cloud had mental disorder or something like that (just like John Nash in ). So he lost everything in the end--his family in the real world and his boyfriend in the imagine world, and even his own life. Or it can be that everything is a dream of him. He fell asleep and had this long dream. The last scene will be a perfect tragedy when he was dying, lying in the rain, using his hand (with his own blood on it) to take out the picture of Stone in the bottom of the card-box, and find that there is a complete different figure on that picture--this is the real person that he was supposed to kill.

It might also be good to set that everything is Stone's imagination or dream. But this would not be as tragedy (I don't know if I am spelling right) as the former one. If everything was just Stone's imagination, it will just be sad, not tragedy.

Just like John Nash in . I don't know that why the " doesn't appear...

John Nash in "A Beautiful Mind".
Here we go.

I know I am a dark person

ermmm...i think your opinion is good!maybe you can edit a scenario and make out!!haha~~support you!