After she hears an interview with the father of the house on a BBC radio programme, paranormal investigator Sheila St Clair contacts the family to offer her support. When they agree to meet, Sheila arranges a visit by a psychic medium known as ‘Cecil’.

Late into the night, when it seems that nothing is going to happen - Cecil and his group of researchers suddenly hear a strange sound – and it seems to be coming from upstairs.