This neatly written Heathers-meets-Groundhog Day high-concept package delivers both technical polish and a toothsome yet likeable cast.

Russo-Young gives this teen parable the thriller treatment to ward off any cheese, and watching Deutch learn her lesson with that expressive face of hers is a singular, moving experience.

Deutch, who appeared in Beautiful Creatures as well as Richard Linklater’s Everybody Wants Some, delivers a sympathetic lead performance, carrying the film with equal doses of sweetness and grace, strength and vulnerability.

While the story easily could have fallen into a broken-record rut, “Nobody Walks” director Russo-Young finds ways of making the day in question feel fresh each time Sam lives it, while giving the overall presentation a look, feel, and voice that’s distinct from the vast swatch of YA movies.

The film mostly retains its humanity, largely thanks to Deutch’s performance and Russo-Young’s insistence on keeping her at the forefront of almost every shot.