S has disappeared from Ruth
and Leonard’s home in Brighton. Suicide is suspected. The couple, who had been spying
on their young lodger since before the trouble, begin to pour over her diary,
her audio recordings and her movies - only to discover that she had been spying
on them with even greater intensity. As this disturbing, highly charged act of
reciprocal voyeurism comes to light, and as the couple’s fascination with S
comes to dominate their already flawed marriage, what emerges is an unnerving
and absorbing portrait of the taboos that broke behind
the closed doors of 1950s British life.