A parasitic entity known as the Gnosia has infiltrated a distant spacecraft, forcing its crew into desperate cycles of accusation and survival as the creature systematically eliminates passengers one by one. Each cycle demands heated debate and democratic voting to identify and neutralize the infected before the threat spreads further, with the amnesiac player character potentially cast in different roles—from ordinary crew member to hidden threat or special position with unique abilities. Trapped in a repeating temporal loop that resets after each vote, the protagonist must navigate these escalating rounds of suspicion and deduction while gradually uncovering fragmented memories, crew conspiracies, and the sinister purpose binding them all to this recurring nightmare.