"Boy meets girl” is a fine start for so many stories, including Let the Right One In, a play adapted by Jack Thorne and based on the Swedish novel and film of the same name by John Ajvide Lindqvist. But when the boy is an adolescent misfit and the girl is a vampire, the consequences of their encounter are likely to be farther-reaching than those in a human-to-human hookup.

No less than three other Broadway musicals have been vampire-based, although all three of them proved to be somewhat less than immortal. This one is directed by John Tiffany, known for the musical Once.

How does this "boy meets girl" relationship begin, how does this vampire make her way in the world of mortals? And — more important for us theatergoers — is this vampire tale going to leave us bewitched or simply benumbed? New York Times theater critic Charles Isherwood clues us in.

The National Theatre of Scotland production of Let the Right One In runs through Feb. 15 at St. Ann’s Warehouse in Brooklyn.