Identical twins Ellen and Helen Edwards (played by
Diana Canova) have only one ticket so they've planned it out, courtesy of an alarm wrist watch, that only one of them is out of the room. This causes confounding and perplexing situations for Doc (
Bernie Kopell) as Helen comes on to him, while her twin Ellen spurns him, creating some hilarious scenes. Julie's (
Lauren Tewes) old heartthrob (
David Hedison) is on the cruise by himself and as charming as she remembered but he was married at the time. And a delightful old couple (
Ray Bolger and
Harriet Nelson Nelson), who were married and survived their cruise on the Titanic, are thought to be a jinx, according to the old wive's tale as told by Gopher (
Fred Grandy), as strange things begin to happen to crew members one by one.
—lemoviecritic