In a near-future world where emotions are harvested and sold as commodities, you play as an emotional engineer tasked with crafting synthetic hearts for an elite clientele. Each heart embodies different emotions, but something goes terribly wrong when one of your creations inherits the memories and desires of its previous owner—who was murdered under mysterious circumstances. As you navigate through the emotional labyrinth of your creations and the underbelly of the heart trade, you'll have to solve the mystery, confronting the dark pasts of both the hearts and their former owners. Your choices affect not only the outcomes of the case but also the pulse of a world meticulously governed by emotions, blurring the lines between creator and creation.