Having started the passage of Lost in Abyss, the user will take control of Landon, a man trapped in a suspiciously realistic dream. Its action takes place in a traditional place for the genre — an old mansion with shabby walls, gloomy rooms and bloody riddles. The player, together with the protagonist, will have to solve them and understand what was the reason for the sad fate and tragic death of the family of the girl Lilith. In addition, it is necessary to find out how the cult of St. Cohen, about which there are unflattering rumors, is involved in everything. It will not be possible to choose a different fate and abandon research — the story of Lost in Abyss will not let the main character go just like that.