THE FUSE

A high-concept romantic comedy is a difficult thing to pull off. The success of any romcom is so dependent on any number of ordinary yet intangible factors — star chemistry, warmth, a general sense of goodwill toward all involved — that when you massively complicate the rules of the game, the balance is thrown off. With “One Night Only,” those intangibles are largely in place: In Monica Barbaro and Callum Turner, it’s got two attractive, pleasingly grown-up leads whom you wouldn’t mind seeing get together; it’s set in New York City at its most invitingly balmy; it even has the odd one-liner that nets an actual laugh. (Not to be taken for granted in a genre increasingly heavy on dialogue with the cadence of jokes, but not the punchlines.)