Edge of Sanity (1989)

Beware the beast within!

When his experiments into a powerful new anesthetic go hideously awry, respected physician Dr. Jekyll transforms into the hideous Jack Hyde. As his wife Elisabeth passes her time in charitable work, rehabilitating the district's fallen women, Hyde is drawn into an escalating cycle of lust and murder that seems to know no bounds.

Genres: Horror, Thriller

Stars: Anthony Perkins, Glynis Barber, Sarah Maur Thorp, David Lodge, Ben Cole