AllMovie

Mente Asesina plays a tune that we've heard on many previous occasions, notably such grand guignol literary classics as Donovan's Brain and the 1940 film Black Friday. A brain surgeon comes into possession with the gray matter of a homicidal maniac. Before long, the doctor's own brain has been taken over by the deceased killer. Then follows a gory murder spree, with the doctor never catching on that he's responsible. The moral of this horrorfest might well be "keep your hat on at all times".