Poppin' Flesh

Chronicles the misadventures of a teenage youth out for a summer afternoon of leisure fun, in a large suburban shopping mall

Rich knows a lot about accidents. So much so, he is scared to do anything that might endanger him, like riding his bike, or climbing into his treehouse. While in an old library, he is mystically transported into the unknown world of books, and he has to try and get home again.

Redubbed "comedy" version No Place to Hide (1970).

A regeneration experiment on a severed arm goes awry, turning the limb into a murderous, reptilian creature.