When an after party goes wrong, new friends Sadie and Jessica must hide a dead body. Jessica has a dirty secret to hold over Sadie. The police piece together clues that lead to Sadie, putting people in Sadie's life in danger.

After Carlos, an impoverished teen from a fractured home, receives a desperate note from Sarah, a pen pal he lost touch with a year ago, he uses her letters to solve the mystery of her disappearance and crimes she may have been a part of.