Return of the Living Dead 3 is an American romantic-horror film released in 1993. The film is the second sequel in the Return of the Living Dead (film series) but bears little resemblance to its predecessors, as it drops the comedy of those films and replaces it with a more horror/sci-fi aspect, and a dark romantic theme. The Trioxin substance from previous films also carry over, but with different effects from previous films in the series. Like the ones in previous films of the series, these zombies tend to run rather than walk or limp and are fixated on eating brains. Unlike the previous films, these zombies seem to infect their victims by biting them whereas, in the two previous films, only exposure to Trioxin (in either its natural gas state or in water that had been exposed to Trioxin) could turn a corpse into a zombie.