People are dying mysterious and gruesome deaths, and nobody has a clue what the cause is. Only health worker Mike Brady has a possible answer, but his theory about killer slugs is laughed at by the authorities. Only when the body count starts to rise, and a slug expert from England begins snooping around, does it begin to look like Mike had the right idea all along.

From Juan Piquer Simón, the director of the immortal Pieces (1982), comes this highly entertaining creature feature about killer gastropods. 🐌