Avsnitt 4

Successful film and TV writer Avon Eve checks into a spa for a week of rest and relaxation. There, she is assigned a masseuse, Sonia, dubbed 'The Smiler' by the staff for her constantly pleasant and smiling disposition . Sonia has heard of Avon and is particularly enchanted by one of her TV works, one that Avon considers quite dreadful. As they spend more time together, Sonia begins to recall a failed love affair with Sir Jonathan Sibley, who claimed to have loved her but refused to marry. When Sibley arrives with his new wife Tania – and fails to recognise Sonia – Sonia's mental state snaps, driving her to a terrifying game of Russian roulette.