You have been locked up for almost two years in the cell of what seems to be a secret laboratory, now hopeless, and after having seen hundreds of people die, you decide to end your life, but when you are about to do so, a strange being appears in front of you. 
This mysterious shadow-like entity wants you to release its sisters and take them to Section 80, the deepest place in the facility where you are. The shadow has promised to reward you with your freedom and after all that you have lived in that laboratory you cannot resist such a proposal.