Sleepaway Camp (also marketed on VHS as Nightmare Vacation) is a 1983 American exploitation slasher film written and directed by Robert Hiltzik, who also served as executive producer. The film tells about a young girl and her cousin sent to a summer camp, where a group of killings begins shortly after their arrival. Released at a time when slasher films were in their heyday, the film is infamously known for its twist ending, which is considered by some to be one of the most shocking endings among horror films. Sleepaway Camp is also notable as the last film of Tony-nominee Mike Kellin.