Japanese movie released on September 30 , 1967 . Produced and distributed by Toho . Color , Toho scope . Running time is 88 minutes.

Maruyama, a day laborer, is living on an abandoned ship at the port of Osaka when he meets an elusive man offering a job.

When a space probe crash-lands on a far-flung Pacific atoll, the craft's alien stowaways decide to take over their new world one creature at a time. Soon, the parasitic life forms latch onto three indigenous critters — a squid, a crab and a snapping turtle — and transform them into colossal mutant monsters.