A blind recluse with an unusual hobby, a telekinetic pantomime dwarf, an embittered hook-handed clown, a serial killer-obsessed man-child and a deranged but caring midwife all receive the ominous message 'I know what you did'. The past catches up with these five seemingly unconnected characters as they go about their darkly comic present-day lives.

Mr Lomax enlists the help of his care worker in the quest to complete his unusual collection. Things go from bad to worse when a misunderstanding leads David and his mum to cover up for his incompetence at the murder mystery evening. Robert is surprised when Debbie asks him out on a dinner date and midwife Joy enlightens the morning group with the perils of choosing a water birth.