1939. Lily Shepherd boards an ocean liner in Essex, bound for Australia. She is ready to start anew, leaving behind the shadows in her past. Nights provide live music, cocktails, and fancy dress balls; days include stops at exotic locations. Lily allows herself to hope for a future with a man who seems to return her feelings. But Lily is not the only one hiding secrets, and as the glamour of the voyage fades, the stage is set for something sinister to occur.