Paranoid is a horror that tells the story of Patrick who has been living in isolation from the outside world for many years. One day he receives a phone call from his sister, who announces her visit more than a dozen years after she disappeared. The game tells the story of Patrick Calman, a 31-year-old man who lost his entire family in mysterious circumstances - his parents died in a brutal way, and his sister suddenly disappeared for unknown reasons. The trauma of losing loved ones shattered Patrick's psyche and turned his own apartment into a prison for him. The only member of Patrick's family left alive is his sister, who disappeared more than 10 years ago. One day, Patrick receives a phone call, and the voice in the receiver seems to belong to his sister. This one announces her arrival - several years after her disappearance. The whole event forces Patrick to break his previous life of isolation, exposing himself to nightmarish experiences bordering on madness.