minor plot spoilersi must confess to have a soft spot for wayne crawford . i know little about him and but he appear to have mass of enthusiasm to compensate for his lack of talent . in his film he usually perform multi task perm any 3 from lead male and director and producer and script writer tackle story line from the sub basement . despite this the end product be usually enjoyable fun for the non discerning . the evil below feature crawford a a down on his luck captain of a ramshackle charter boat and a bit like bogart in to have and have not the similarity between the film end here though . the story begin with an underwater scene with two diver search a wreck and before be attack by an unseen creature bit like the start of jaw 2. the wreck turn out to be that of the el diablo and which go down century earlier . the ship be man by heretic priest on the run from spain and with a cargo of steal church treasure . this allow the introduction of various link to supernatural force with lucifer and the armageddon both get a look in . the films title refers to this sink devil ship and rather than any malevolent sea creature . whatever fault the film have ( and there be many ) it be fun to watch and competently make . you can not help but like a film which and in the final 5 minute and copy the famous beach scene in from here to eternity and the final line from casablanca .