The world is overrun by doppelgängers - a mimic with nefarious intentions. You, the new guard for the Sunshine Residence, is appointed to keep track of the real tenants coming home and the doppelgängers attempting to infiltrate the building. Francois is a doppelgänger posing as the doctor that lived in second room on the third floor. His intentions are malicious, yet he revels in playing around and terrorizing humans. He's a doppelgänger that would be difficult to rid of.