Condo (2008)

Benjie works as a security guard at a condominium and requested the building administration to let him stay in the guards quarters. He only cares about his job even if it is the same tired routine. The building and the job have become his perfect refuge. When a mysterious intruder and a phone call coming from an empty unit begin taunting him. He fears for the perfectly lonely world he's built around himself, in the end, he discovers that the answer to the mystery lies not very far from his own shadow.