We start where the previous film, Mad Doctor of Blood Island (1968) finished with Dr. Bill Foster (John Ashley again) and Sheila Willard although she is never seen, escaping Blood Island on a boat. However, escaping with them is the mutant green chlorophyll contaminated monster. It starts to kill the crew, they shoot at it. In return the monster throws a barrel of petrol at them, the barrel bursts and petrol spills everywhere. One of the crew attacks the monster with a naked flame, it gets knocked out of his hand and the entire ship blows up and sinks. Only Foster and the monster survive. The monster is washed up on a beach. Foster is rescued and sent back to the mainland for treatment. Foster decides to return to Blood Island, and hires a small cargo ship to take him. When he arrives on the ship he finds a newspaper reporter Myra Russell (Celeste Yarnall) waiting for him. She thinks there might be a story and travels with Foster to investigate. Once at Blood Island Foster, Russell and the ship's Captain (Beverly Miller) find the tribes Chief Ramu (Alfonso Carvajal, another returning cast member from the previous film) is apprehensive and unfriendly. Foster starts by heading to Dr. Lorca's (this time played by Eddie Garcia) old house that was supposedly destroyed by fire. There he runs into an old enemy, Razak (the returning Bruno Punzalan) Dr. Lorca's henchman who had previously tried to kill him. With the discovery of Razak, Foster manages to convince Ramu to help him. They go in search of Razak and leave Myra behind in the village. However, Razak and his men kidnap her and take her to Dr. Lorca's elaborate hideout in the Valley of the Red Mist who is still alive and still conducting experiments on the unlucky locals, and keeps the green monsters decapitated head and body alive with the help of medical devices, for reasons which aren't really explained that well. It's up to Foster to finally put an end to Lorca's horrifying experiments and save the girl! Written and directed by Eddie Romero I thought it was a pretty decent film, but not as good as Mad Doctor of Blood Island. This one plays more like a jungle adventure for the most part, with Ashley trying to save Yarnall's dopey reporter. The green monster has even better make up than the first, even though those eyes are still a problem, you can the actors eyelids, again. The problem is that it's barely in the film, after the cool opening sequence the monster doesn't attack anyone else in the whole film, the monsters headless body just lies there and it's head just sits on a table doing nothing in particular, a complete waste. The monster attacks were the best feature of the previous film and this feels like a bit of a disappointment. Dr. Lorca and his experiments are also almost completely ignored, he doesn't even turn up until about half way through the film. There is also a serious lack of blood and gore, which doesn't help it. The end sequence in which the locals fight Dr. Lorca's gang isn't very exciting and a little dull, a bit more imagination would have helped. Acting, again is OK, as are the effects, music, sets and editing, but non of it's brilliant. The Philippine jungle locations are again nice and colourful. It's a reasonable exploitation film, but overall I was a bit disappointed. There are better out there, but this ain't too bad.