Seventeen years after the Gemini Killer's execution, a series of gruesome murders terrorizes Washington D.C., eerily reminiscent of the Gemini Killer's style. As the death toll rises, a skeptical police officer is determined to solve the case. Meanwhile, a mysterious inmate in a high-security psychiatric institution emerges from a catatonic state, claiming to have the answers the officer needs.

The Exorcist III
A detective's pursuit of justice in a series of murders eerily mirroring the Gemini serial killer's crimes leads him to explore the disturbed minds of psychiatric patients.