King Troll (The Fawn) review – this nerve-jangling thriller never lets up
New Diorama theatre, LondonSisters navigating a harsh immigration process conjure up an unnerving helper in Sonali Bhattacharyya’s drama Sonali Bhattacharyya’s shivery new play begins with a jolt of panic. Pre-show waltz music cuts out; lightning flares, then leaves us in darkness. Nerves jangle from the first moment, and never get a chance to calm during…