Game Hub writes: "First off all we'll just say you can read this review without worrying about plot spoilers for this game and its predecessor because we're not cruel / stupid and can't encourage you enough to go and play through the first classic game to fully enjoy this one. So there's no need to read with one eye open from behind the sofa.
All you really need to know is that in the first game the player found themselves at the hidden underwater city of Rapture after a plane crash. Unfortunately everything had gone completely mental as all the citizens had been busy messing around with Plasmids that altered them genetically, giving them superhuman abilities. After taking it overboard, the Utopia fell before coming into fruition leaving its citizens wrecked of body and mind as they became known as the Splicers. Horrifically the city's little girls, later dubbed the Little Sisters, were put into a trance and forced to collect Adam (Plasmid currency) from corpses. Players could choose to liberate them from this haunting nightmare or murder them to get extra Adam supplies. Well, after you disposed of their guardian first, the ominous Big Daddies."