In a not-so-distant future, advances in biotechnology allow people to 'borrow' hearts for a short time to experience the emotions of others. You play as a heart host, caught in a web of intrigue and power struggles as multiple personalities vie for control of your borrowed heart. With every beat, you experience vivid memories and emotions from a killer, a lover, and a philanthropist, blurring the lines between your own identity and theirs. Navigate through their lives while piecing together the mystery of a murder that links them all. Your choices shape the outcome as you decide whose heart you will keep — and whose life you might ruin in the process.