Set in Edinburgh, the story follows Renton and his circle of friends—Sick Boy, Begbie, Spud, Tommy and Kelly—as they navigate addiction, friendship and survival on the margins of society. Their lives unfold through a series of encounters shaped by rebellion, dependency and attempts to break free from destructive cycles, reflecting the realities of youth culture and disaffection.

The musical is written by Irvine Welsh, with music and lyrics by Stephen McGuinness and Irvine Welsh, and is directed and developed by Caroline Jay Ranger. Adapted from the original novel and film, the production brings together a cast of central characters alongside an ensemble and live band, incorporating both songs from the film and newly written material.

Marking thirty years since the release of the film, this stage version presents a reinterpretation of the source material through a combination of live music and theatrical storytelling, situating the narrative within a contemporary stage context.