Mananayaw (1978)

Letty (Chanda Romero), a sex model in a supper club "fashion drama", is the kept woman of politician Ramon Vergara (Ben Rubio). He is enamored with naïve amorality and rewards her with ample favors. Dingo (Phillip Salvador), her partner in the act, is a dreamer who hopes to become big as a legitimate fashion model. His unaffected ways are soothing and precious to Letty. Ramon sets up Letty in a furnished apartment. His wife Carina (Mona Lisa) expresses her disgust but allows his indiscretions as long as they remain as temporary arrangements. However, Ramon falls deeply in love with Letty and wants her to have his child. Letty feels pressured; she doesn't want to get pregnant or raise a child. She leaves the supper club and showers affection on Dingo, who is also in love with her. Ramon discovers the affair and throws Letty out, and she's forced to live with Dingo in his small apartment. But Dingo is the practical type and aspires for a higher standard of living. They soon realize that they cannot live together. Letty goes back to the club and contacts Ramon: she now agrees to his demands--and his macho domination.