Relies mostly on the creepy and claustrophobic atmosphere of the scenery, a quite dark huge spaceship that is infested by cannibals, which are basically the mutated human cargo. Acting is quite solid. This movie came as a surprise, as it wasn't announced properly, like with those big campaigns of today. The 28% rating isn't deserved, since production values are quite good. If it wouldn't have this hysterical undertone, it would be quite watchable, though Dennis Quite does deliver his character's insanity quite well. It's always good for a rewatch on DVD, when there is a need for a not overly rethought script, but a gripping sci-fi environment.