The Boston Strangler is a crime drama film based on the true story of the Boston Strangler, a serial killer who terrorized Boston in the early 1960s. The movie follows the investigation led by detective John S. Bottomly as he tries to catch the elusive killer. With its gritty portrayal of the crimes and the psychological toll it takes on the investigators, The Boston Strangler offers a chilling look into one of America's most notorious serial killers.