Romance musical

A man thinks he's being cheated and hires a detective to watch over his wife on a cruise, but she hires a singer to impersonate her. A man thinks he's being cheated and hires a detective to watch over his wife on a cruise, but she hires a singer to impersonate her. A man thinks he's being cheated and hires a detective to watch over his wife on a cruise, but she hires a singer to impersonate her. A man thinks he's being cheated and hires a detective to watch over his wife on a cruise, but she hires a singer to impersonate her.