The game follows a young woman named Althea who discovers that she has the ability to enter people's memories. She must use this power to uncover a conspiracy and save her sister, who is trapped inside one of these memories.
The gameplay revolves around exploration and puzzle-solving. Players control Althea as she navigates through various environments, from abandoned buildings to mystical realms. The game features a mix of action sequences and platforming challenges, all while trying to uncover the secrets behind her sister's disappearance.