Alex Paige has survived plenty, but she never expected a trip to her best friend's wedding to be marred by murder.

A celebration on Lake Michigan quickly unravels when her vengeful ex-boyfriend just won't stay out of her life. A man who haunts her across state lines, his troubling behavior escalates from mere coincidence to menacing confrontation.

But when his body is found washed ashore near the marina, Alex is thrust into the center of a chilling investigation where friends, foes, and lake currents twist around secrets that refuse to stay submerged.

Fighting to prove her innocence, Alex uncovers links between her ex's death, an historic shipwreck, and a ruthless man's obsession with treasures hidden in the lake's depths.

Racing against time, Alex follows a dangerous trail of clues weaving from distant shores to Lake Michigan's murky waters. To survive, she must expose the killer, or risk becoming the next victim claimed by the lake.