When Heaven Judges (1990)

Florida (Vilma Santos) concocts a plan to avenge the abuse she suffered from devilish matriarch Octavia (Gloria Romero), only to discover that the child she used to exploit for her revenge is her own child. An oppressed housemaid has transformed herself into a wealthy and powerful business mogul through sheer dint of talent, ambition, and driving need to get revenge on her tormentors. She returns to the scene of her most abject debasement with the sole intent of humiliating the family who once made her life such a living hell. Unknowingly, she gets to exact revenge on the very person who turns out to be her own daughter by the son of her former mistress. Guillen's Kapag Langit Ang Humatol (1990) was based on a radio serial about the vindictive story of rags to riches, Florida.