In a world where memories are currency, the past can be bought and sold. A memory dealer, trades in the most intimate of exchanges. But when a melody from yesterday beckons and a stranger's request stirs forgotten chords, they must decide how much of their past they are willing to part with.

When her roommate's house party suddenly becomes the epicenter of a mass hysteria event, hard-headed Katrina must work with her three closest friends to find a cure and get her house back in order.