Stacey has a good life with a husband and two daughters, but something is missing in her marriage. She loves Chet but things have long since fizzled. Memories of her high school boyfriend Troy distract her from the realities of her life. She locates Troy on a social media site and they start talking, revealing that the place Stacey's family will be vacationing is near the city where Troy lives.

After meeting secretly with Troy, Stacey realizes she doesn't love him as she thought and wants to work things out with Chet. Only Troy becomes obsessed with Stacey. After following her back home, Troy grows determined to win her back, no matter who he needs to destroy in the process.