Blood Bath (1975)

This horror anthology contains four spooky tales of the supernatural told around the dinner table by the actors and the director of a horror movie. The stories involve a mad bomber who gets his macabre comeuppance; a magical coin that transports its owner back in time; a ghost haunting a rich old man's vault; a karate champion whose desire to achieve the "Tenth Level" reveals a secret for which he isn't prepared and finally the framing story ties everything up with a creepy climax.