Weasels Rip My Flesh (1979)

Returning from the planet Venus an errant NASA spacecraft crashes into the ocean spilling its radioactive cargo Enveloped by a radioactive mass a rabid weasel is transformed into a gigantic killer mutant Prowling the countryside the huge weasel kills and devours victims The creature is captured by a disturbed scientist who plans to use its regenerative blood to amass an army of similar monsters enabling him to conquer the Earth