Brady Coyne is a middle-aged Boston attorney with a small, select clientele - one that leaves him sufficient time to pursue a personal life. That personal life currently focuses on Evie Banyon, a hospital administrator Brady has been seeing for the past year. While they are on a weekend vacation in Cape Cod, though, a determined stalker from Evie's past turns up to torment her anew. After an unpleasant confrontation with him, Brady and Evie return to their vacation cabin with a dark cloud hanging over them. The next morning, Brady wakes up to the sound of Evie, just outside the cabin, screaming for help. What he finds is the stalker's murdered body lying at Evie's feet, a body she claims to have discovered when she returned from her morning run.

Now both Brady and Evie are considered prime suspects in the murder of a man with deep ties to the local community. Released by the police after intense questioning, they return to Boston, whereupon Evie disappears without word or much of a trace. Realizing just how little he knows about Evie's life, Brady Coyne must now delve into her past if he is to uncover the truth about the dead body in his front yard and find the missing Evie in time.