1914, Belfast. William is a sceptic, but one night during a séance something happens that places doubt in his heart and a seed of obsession in his mind. Could the spirits truly be communicating with him or is this one of Kathleen's parlour tricks gone too far?
Set in the buried streets of Georgian London and the outrageous underworld of the molly houses, a carpenter hiding a double life, searches for a traitor who is betraying the secrets of the mollies.