Philippine Kung fu movie from 1979

The story is simple, yet gripping in its telling by master director Cesar 'Chat' Gallardo. It is essentially about the brutalization of a man by his environment. In a run-in with the ruling hoodlums of the place Nanding (Fernando Poe, Jr.) kills one them and is sent to jail. While he is in prison, his sister and mother suffer indignities from the criminal kingpin of Isla Putting Bato and Nanding bolts jail on a mission of revenge. While on his quest for vendetta he meets another victim of Putting Bato's brutal society, Charito Solis, and they find in each other the tenderness and solace each was denied before.—BGP

After a prison spell earned avenging the murder of his parents, Pepe (Revillas Sr and Jr) is struck by magic lightning and left with electric superpowers. After a spell healing the sick he turns vigilante.

Walang Katapusang Tag-araw focuses on two strong-willed women, Matilde and Binyang, who clawed themselves up, in almost simultaneous and parallel ascent to the good life. Set in Sampaloc, Manila in the 60s, the women's lives intertwine in their rivalry over Amando, scion of rags-to-riches neighbor gigolo, Leo.

Triangulation.