Knotweed is a chilling, propulsive, psychological horror story that confronts fear, heredity, prophecy, and the role of the church in breaking people. A fractured mind can be infectious, as one family are about to discover in devastating fashion. Born from 17th-century witch trials, an unconscious malevolent inheritance is unleashed, raging through a bloodline to modern-day London. What will it take for them to finally escape their demons?