Mamántula is the guy everyone desires, but he is also, secretly, a giant tarantula disguised as a human, conceived during a brief encounter in a distant paradise. In an alternative present of brutalist saunas, endless metro corridors, and trench-coated, hat-wearing detectives, each of Mamántula's lovers falls victim to his insatiable lust for blood and semen; a thread in the stellar web he's weaving to return to the dimension where he belongs.