Vacationers, partiers and crew alike get the chance to unwind one last time before the Deep Seacrets makes port, and everyone has to return to their miserable, little lives. The drinks are flowing, the music is pounding, and for one final night, the worries of the real world are left behind.

But when the Captain never shows up, the night takes an unexpectedly dark turn. Found in his quarters with a knife in his chest, the Captain still clutches a note with a simple message: “I know.” A sense of unease ripples through the guests. Still miles from land, secrets bubble to the surface, alliances shift, and no one is as innocent as they seem.

Can you put the pieces together and solve the mystery before it’s too late?