Can Anyone Help

Right....

i didnt know where to put this but here seemed arite....when i was younger i watched a film about a girl who got killed by her father but noone knew...and the girls ghost kept giving clues to the mother or somethin until she found the watch the girl was wearin in the river where her dad drowned her...the watch had a butterfly in it if im correct....at the end as i can remmeber the camera is on her father and the childs arms come from the top of the screen and grabs his head..then it ends...i cant for the life of me rmemeber it.. my mum is also looking for it and cant remmeber the name...if anyone can help please do..it was a brilliant film. thnx