On July 15, 1977 “Shock Waves” was released in theaters in the United States! Written and directed by Ken Wiederhorn (Return of the Living Dead Part II). The film is about a group of tourists who encounter aquatic Nazi zombies when they become shipwrecked. It stars Peter Cushing as a former SS commander, Brooke Adams as a tourist, and John Carradine as the captain of the tourists' boat. | On This Day In Horror