They didn't mean it. They didn't mean to kill him.
There was a party, and it was an accident...but they had futures to protect. So Barry, Julie, Helen and Ray swore one another to secrecy. But now, a year later, someone knows. Julie receives a disturbing, anonymous threat: I know what you did last summer.
The dark lie is unearthed, and before the four friends know it, they need to outsmart a killer...or they will be next to die.