In 'Whose Shadow is That?', players step into the shoes of Cassie, a young artist plagued by a series of bizarre occurrences in her dimly lit apartment. After a particularly late-night inspiration session, she begins to notice movements in the corners of her vision, and shadows that don't belong to anyone. As she delves deeper into her own psyche, unraveling the mystery of these enigmatic shadows, Cassie is forced to confront her past choices, her fears, and the very essence of her creativity. Each decision players make shapes the story and leads to various outcomes as Cassie seeks to bring to light the source of these chilling specters. Are they manifestations of her doubts or something more sinister?