Seven sailors in London have an evening out before they have to return to ship.
It's an example of the 'Swinging London' genre of film, which means a diversity of exploits, from David Lodge, who spends the evening in with an old girl friend, to Bernard Lee, who thinks he's struck gold, to John Bonney and Coiln Campbell, who find love and frustration. There's a lot of seaminess to this movie, which turns out to be essentially normative and no worse than PG-12 by modern standards.
Liverpool band The Searchers play one number in a night club. The producers got the Beatles for the gig, but decided they didn't want to pay the train fare.