Welcome to the Honeymoon Hotel, a madcap '60s sex farce starring Robert Goulet, Nancy Kwan, Robert Morse and Jill St. John. Jilted at the altar by his fiancée, Cynthia (Anne Helm), Jay Menlow (Morse) is convinced to go on his honeymoon vacation with his best friend, Ross (Goulet), a shameless ladies' man. Arriving at the Boca Roca Hotel, which only caters to couples, Jay hopes to patch things up with his would-be-bride, while Ross chases after the social director (Kwan), the resort's only single female. So when Ross' girlfriend (St. John) shows up with his lecherous boss (Keenan Wynn), who's followed by his suspicious wife, Cynthia arrives as a surprise for Jay, and the true fun really begins.