Step into the shoes of Alex Grey, an unassuming heart-transplant surgeon whose life takes a wild turn when a peculiar patient presents a challenge beyond medicine. Alex discovers that the heart they have transplanted holds memories, personalities, and secrets of its previous owner. As the heart starts to influence their life in unexpected and dramatic ways, Alex must navigate through the lives of several eccentric characters connected to the heart—the former owner's family, friends, and enemies—solving puzzles, collecting clues, and interacting with these colorful personalities. Each choice Alex makes not only unravels the mystery but also determines how much of their own identity remains intact. Will they embrace the memories of a stranger, or fight for their own heart's desires?