When implanted in a person's wrist, a TiMER counts down to the day the wearer finds true love. But Oona O'Leary faces the rare dilemma of a blank TiMER. Her soul mate - whoever and wherever he is - has yet to have a TiMER implanted. Staring down the barrel of thirty and tired of waiting for her would-be life partner to get off the dime, Oona breaks her own rules and falls for Mikey, a charming and inappropriately young supermarket clerk with a countdown of four months.

Cole is a likeable regular guy. Except that ever since he witnessed a gruesome murder-suicide, things haven't been quite right. His wife left him, he is tormented by hallucinations and his career has nosedived into a blue collar job with a carpet cleaning service. Just when it seems his life has reached bottom, Cole is called out on an all-night cleaning job in an Italianate mansion far from the city. For company he has Henry, the rich, condescending homeowner who seems to take sadistic pleasure in letting Cole think he has just murdered his wife. A reddish stain on the carpet, a knife hacking into baked rabbit, a cell phone that won't stop ringing - does it add up to murder or is Cole losing his last handhold on his fragile sanity?

In the 1800's there was a woman that little children would take their old teeth (ones they had recently lost) to in exchange for a gold coin. A few years later, tragedy struck her, first a fire in her house which caused her to not be able to go into any type of light, and then she was hanged. There's a story that goes around the town of Darkness Falls about her, and she's called the Tooth Fairy. The story goes that she can't go in the light, and if you wake up and see her, she'll kill you. The usual saying is "Don't Peek." Well, there is a boy named Kyle who gets a warning from his friend Caitlin to not peek. Well, he wakes up on the night when the Tooth Fairy is supposed to come and get his last tooth and sees her. It all leads to more tragedy and the movie jumps to 12 years later. Now grown up, Caitlin calls Kyle because her little brother Michael is going through the same things he did as a boy...