Rookie writer Lily has one week to write erotica that "makes people feel something" , or she's out of a job. Just as inspiration runs dry in the dead of night, a man with no name and no answers walks into her life , an elevator encounter, a kiss on a rooftop, a heartbeat in freefall. He becomes the muse behind every desire she writes... and the reason her own heart won't stay still. But who is he, really?