Threesome [Troika]

A mining engineer (Andre Soriano) who is having marital problems with his wife of Indian descent played by Mara Altiera. The two have a son (Peter Lacana) who is afflicted with a learning disability. The husband decides to set up the wife with one of the workers at camp (Jamil Basa) who also stays in the house—an act that eventually leads to a ménage a trois.