Most Edinburgh venues work against the play presented, but the dank caves that are Baby Belly are the perfect setting for Glyn Maxwell's reworking of the underworld myth of Orpheus and Eurydice. When John goes down under in search of Evie, who died on her wedding day, he discovers that both mobile phone and memory reception are defective in the underworld. It's clearly going to require more than a nudge from the resident waiter-cum-musician if John is going to retrieve his memory and the love of his life.
Maxwell's play is slow to get going and throws away more opportunities than it uses, but it gives a new twist to an old story, and in the process gets to the dark heart of an apparently uncomplicated relationship and the ease with which love tips into obsession and madness. One might expect a little more poetry from Maxwell's script and some less-clunky crafting, but the narrative eventually grips and the idea of hell as a place in which we are condemned to endlessly repeat our mistakes is beautifully done.
· Ends tomorrow. Box office: 0870 745 3083.