After Midnight is the first part of the Gang Wars trilogy, which centers on a New York City gang war fomented by the Faces of Fear, a gang of supervillains somehow controlled by the mysterious "Big Boss".[1]
The player character super heroes are called to the Metropolitan Museum of Art, where a tome titled A Mdman's Mutterings has been stolen. While the super heroes' investigation leads to confrontations with supernatural monsters, manifestations such as animated skeletons attack the city at night.[1]
During their investigation, the super heroes help a pair of mutants, Felicia Bifrost and her brother Johnny, who would later appear in TSR's 1992 release X-Forces: The Mutant Update.[1]
The investigation leads to the underground lair of the Faces of Fear gang, where the super heroes find a hypnotizing machine used to control the supervillains, and face a boss fight with the lieutenant of the Big Boss.[1]
