Ellie Dunn has been invited to a party along with her father and fiancé at the home of the eccentric Captain Shotover, where he lives with his bohemian daughter Hesione and her husband Hector. But it soon comes to light that Ellie has eyes for another man. Surprises hit one after the other, when it turns out Ellie’s “true love” is not who he appeared to be, Shotover’s other daughter, Ariadne, shows up at the party after a 23-year absence, and love triangles shift and overlap.