Maurice Grosse was a British paranormal investigator known for his work in the field of ghost hunting. He gained prominence in the 1970s for his involvement in the Enfield Poltergeist case, where he investigated reports of strange occurrences in a house in Enfield, London. Grosse was dedicated to understanding and documenting paranormal phenomena, often using audio and video equipment to capture evidence. In addition to his work on the Enfield case, Grosse was a founding member of the Society for Psychical Research. He wrote extensively about his experiences and beliefs regarding the supernatural, contributing to discussions on the validity of paranormal claims. His efforts helped raise awareness of ghost hunting as a serious field of inquiry.