The Horror of Party Beach (1964)

Watch The Horror of Party Beach: While the hot-rodders and motorcyclists are having a rock-and-roll beach party, a barrel of radioactive material is unloaded from a passing ship, plunges to the bottom, and splits against a jagged rock. A black liquid oozes out and covers a shapeless mass on the ocean floor, which suddenly moves and becomes an encrusted vicious monster. Soon there are several monsters who must have human blood to survive. Tina is the first victim, and football hero Hank Green and airhead Elaine Gavin enlist the aid of her science-professor father, Dr. Gavin, to find and capture the killer. Not working fast enough to prevent the attack on 20 teenagers at a slumber party or the killing of three girl...