Unmarried sisters in their fifties share a London flat. Nina is brisk, dynamic and gainfully employed. Nancy is plump, self-conscious and suddenly redundant. Urged to find a hobby, she unwittingly stumbles into a job modeling for eccentric drawing students and their philandering teacher. Initially horrified to discover that life models pose naked, Nancy is unexpectedly liberated by the experience. Though she keeps this activity a secret, her newfound...