After successfully curing a primate's heart condition, Dr. Henry Jeckyll develops a personality-enhancing serum for himself which inadvertently creates an evil alter ego personality, Edward Hyde, who sets out to terrorize college co-eds.
Tony Todd
as Dr. Henry Jekyll / Edward Hyde
Tracy Scoggins
as Karen Utterson
Vernon Wells
as Dr. Dennis Lanyon
Danielle Nicolet
as Whitney Weddings
Stephen Wastell
as Detective Richard Enfield
Deborah Shelton
as Donna Carew
Judi Shekoni
as Renee
Tim Thomerson
as Arnie Swift
Peter Jason
as Lt. Hamilton
Peter Lupus III
as Gerald Poole