Fifteen years after the original film, the philosophical Lieutenant William F. Kinderman is investigating a baffling series of murders on Georgetown that all contain the hallmarks of The Gemini, a deceased serial killer. His investigation eventually leads him to a catatonic patient in a psychiatric hospital who has recently started to speak, claiming he is The Gemini and detailing the murders, but bears a striking resemblance to Father Damien Karras.

Anxious about his future after high school, a 19-year-old Italian-American from Brooklyn tries to escape the harsh reality of his bleak family life by dominating the dance floor at the local disco.