When a violent storm washes away the only bridge to the remote coastal village of Seabreeze, the historic Lighthouse Café and Inn becomes an island unto itself. For café owner Clara Finch, the stranded guests are a welcome distraction from her own troubled past. But the mood shifts when a reclusive stranger takes Room Seven and a guest is found dead under mysterious circumstances. With the police unable to reach them, Clara must rely on her wits and the help of a few unlikely allies among the guests to uncover the truth. As paranoia spreads and the storm rages, she realizes the killer is still among them, and the lighthouse's beacon may be guiding the next victim to their doom. Can Clara solve the mystery before the sea calms and the killer escapes, or will the secrets of Room Seven drag them all into the dark?