Step into the shoes of Marlo, a heart-transplant patient who wakes up to find that the memory and personality of their heart donor is now intertwining with their own. Navigate through a web of choices and moral dilemmas as Marlo must uncover the mystery of their donor's life, unravel dark secrets, and ultimately decide what kind of person they truly want to be. Each decision shapes Marlo's psyche and can lead to various outcomes, including acceptance of a new identity or a descent into madness. As Marlo pieces together the puzzle, you will encounter vivid characters tied to both Marlo's and the donor's past, creating an intricate tale of love, revenge, and self-discovery.