final film idea

4 friends aged 16-17 go and hang out in a forrest near their house, they discover an old ring buried there. The friends take it & start messing around with the ring, and one of them puts it on their finger. At first they can't get it off and start to panic, eventually it comes off, and leaves a burn mark on their finger. Then one of them is intrigued by the ring and wants to take it home with her. As she is walking home she decides to try on the ring for herself, she continues to walk home, and begins to see a ghostly girl in odd places. The ghost appears to be following her. She also begins to see blood splatters everywhere that aren't actually there, this really freaks her out. The next day she is still seeing weird stuff, and decides to confide in her friend. At first her friends don't believe her and think she is joking, however her behaviour begins to become progressively more irrational, her friends then notice she is wearing the ring they found, and get her to take it off, after she takes it off her behaviour becomes more normal and she stops seeing weird hallucinations. One of the friends decides to find out more about the ring. They research online and find out about the girl who was murdered in the park, and realise that the ring must belong to her. The hatch a plan to return the ring to the park but it comes back to them. The realise that they have to return the ring to the girl so they find out where she is buried and dig up her grave and bury the ring with her.  Everything then goes back to normal. The End.