Heather Graham and James Purefoy play a couple who desperately want to have a baby. Unfortunately, she has been diagnosed as infertile, and the couple can't afford the medical treatments that might allow her to conceive. Good fortune appears to be smiling on the couple when they are given an opportunity to receive free treatments at a mysterious fertility clinic.

In Grace Arbor the answers are never clear. Who is underneath the mask? This is the story of a group of high school kids - all popular, good looking, "most likely to succeed" types - who amuse themselves by pulling pranks on unsuspecting students and teachers. At their core lies a cruelty and shallowness which comes with the territory of privilege. One night, a prank goes horribly wrong, a teenager is killed, and the gang covers it up as a drowning accident but five years later, their lives are turned upside down when a local is killed by a serial killer wearing a haunting Marilyn Monroe mask. Soon, the gang are killed one by one in manners mirroring the pranks they pulled in high school. Is it revenge? Is it karma?