Most critics agree on what Medusa Deluxe does well and where it falls short, and the two lists barely overlap. The praise goes almost entirely to the staging: a murder mystery played out backstage at a hairdressing competition in a single continuous take, with roving camerawork that several reviews name as the main reason to watch. The ensemble is warmly received, Clare Perkins in particular, and the hair and costume design draw approving notes even from the doubters.
The reservations cluster around the script. Review after review says the mystery loses tension as it goes, that the characters stay thin, and that the ending arrives quietly. The spread is fairly narrow, with most reviews landing between three stars and a B-plus. The clear dissent is RogerEbert.com, which finds the film dull as a whodunnit despite the technical display, and The Guardian is nearly as cool, faulting a suspense-free screenplay that the long take cannot rescue.
