Things on board the RMS Atlantic are terribly, terribly complicated. Monty Bodkin loves Gertrude, who thinks he likes Lotus Blossom, a starlet who definitely adores Ambrose, who thinks that she has a thing for his brother, Reggie, who is struck by Mabel Spence, sister-in-law of Ikey Llewellyn (movie mogul, Ambrose's prospective employer, and reluctant smuggler), but hasn't the means to marry her. With the well-meaning but unhelpful ship's steward, Albert Peasemarch, and a toy mouse with a screw-top head thrown in for good measure, it will, indeed, take the luck of the Bodkins to sort it all out.