Tahu Sama Tahu

(title translation: Knowing What They Know)

Just as other movies of the comedy group, Warkop, beautiful and sensual girls are featured. Harry is accepted into Sungkowo’s company with help from his uncle and his friends, Tina and Anna, who also live at the same boarding house. Sungkowo, a conservative man, prefers to have a disciplined employee with a moustache. Hence, Harry poses as the wanted employee. His disguise is revealed when he is spotted dancing at a nightclub. Harry then admits that he has a twin, Herman, who later becomes a piano teacher of Sungkowo’s daughter, Indah Sari. Herman and Indah fall in love with each other. Then comes the bother of managing the twin roles, and many misunderstandings are inevitable until they finally open Sungkowo’s eyes on certain behaviour based on physical characteristics.