Shear Madness is both a play and a theatrical phenomenon. Based on a 1963 German experimental drama, Bruce Jordan and Marilyn Abrams transformed it into a comedy set in a hair salon. Their adaptation premiered in a small village in upstate New York in 1976 before moving to Boston in 1980, where the show enjoyed an extraordinary forty-year run, finally closing in 2023. Since then, it has been translated into numerous languages and produced around the world, confirming its status as a cut above the average whodunit. The action takes place in a bustling hair salon where two stylists and four customers learn that the upstairs neighbour, a former concert pianist, has suffered the unkindest cut of all. When the police arrive, the audience is enlisted to comb through the evidence, cut through the misdirection, and tie up the loose ends. The first act is packed with sharp one-liners and an infectious energy that keeps events clipping along at a brisk pace. The cast is excellent, with standout...