When former Coast Guard officer Fallon Monroe returns to Tidehaven to care for her aging father and leave the ghosts of a failed rescue mission behind, she wants nothing more than a quiet summer on shore. But when a fishing boat drifts into the harbor without its captain, Fallon can't ignore the questions surrounding his disappearance?especially when they lead to a secret investigation her father has been conducting with the marina owner Tate Maddox.

Ten years Fallon's senior and firmly off-limits, Tate wants no part in the investigation, or the attraction simmering between them. But when her father's health takes a devastating turn, Fallon refuses to let his work disappear with him. And despite Tate's better judgment, he refuses to let her face the danger alone.

What they uncover is far more sinister than either imagined: missing girls, falsified shipping records, and evidence of crimes that have haunted Tidehaven for decades.

Now, with another girl missing and dangerous men determined to keep their secrets buried, Fallon must return to the water she swore she'd never enter again. And Tate must decide how much he's willing to risk to keep her safe.

Because in Tidehaven, the water doesn't just carry secrets. It brings them back to shore.