Laplace's Witch (2018) is a Mystery, Crime, Science Fiction film that follows an environmental analyst is asked by the police to determine if two deaths by hydrogen sulfide poisoning are an accident - or a murder. But when he meets a young woman at both sites, a scientific mystery begins. Laplace's Witch is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 6.3 out of 10 from 38 votes. Fans of mystery movies may also want to explore similar titles below.