A Cottage on Dartmoor (a.k.a. Escape from Dartmoor) is a 1929 British silent film, directed by Anthony Asquith and starring Norah Baring and Uno Henning. It was the last of Asquith’s four silent films, produced exactly on the cusp of the transition from silents to talkies in British cinema, a point which is referenced in the film itself.
Flashback story of an escape from the lonely, high-security Dartmoor Prison. A jealous barber’s assistant is enraged by the attentions that his manicurist girlfriend pays to a customer. He threatens the customer with an open razor and lands in gaol.