In 'Whose Heart Is It Anyway?', you find yourself in a bizarre world where emotions manifest as physical entities. After a freak accident, your heart gets stolen by a mysterious figure known as the Emotion Thief. As you navigate strange landscapes and encounter different personifications of feelings (like Anger, Joy, and Regret), you must engage in witty banter and existential challenges to reclaim your heart. Every choice affects your emotional landscape and the relationships you build with these entities, determining your fate and whether you can find true empathy in a world gone mad.