In 1989, there was only one bar in Jakarta, Indonesia, which catered exclusively to a certain group of people. Its existence was spread solely through word of mouth to maintain the privacy of its patrons. That bar finally became a true safe haven for its clientele. Its customers called it 'The Post Office'. No one expected their discreet fun at The Post Office would be interrupted; until one of its patrons was found dead there. Was it an accidental death or was it something more sinister? Had the Post Office's notoriety jeopardized the clientele's safety? It was up to Detective Hamdi and his young protégé Pradaya to familiarize themselves with Jakarta's underground characters in order to solve the mystery at The Post Office.