This delightful film noir parody features a quartet of comic performers on top form. Over a breathy hour the ridiculous plot covers the genre archetypes and clichés: the femme fatale, the maguffin, the incessant rain. It's not an original concept, but what sets it apart is a cracking script and strong performances all round.

Despite performing on what must be one of the smallest stages on the Fringe, the production fearlessly scales up for its absurd action scenes and, rather than stifling their invention, the cast adapt to its restrictions brilliantly. Less successful is a wraparound story about the four performers trying to secure the services of an acting agent. The whole 'play within a play' idea feels unnecessary but fortunately it seldom infects the rest of the piece.

The cast have unerring chemistry which brings a real spark to some of their zippier exchanges, and the script sparingly drops in moments of surrealism to great effect. This is a joyously daft show performed with real vim and vigour.

Underbelly, Bristo Square, 0844 545 8252, until 26 Aug (not 13), 4.05pm, £9–£10 (£8–£9).