DVD. Happiness is a Four-letter Word is a 2016 South African romantic drama film directed by Thabang Moleya and written by Busisiwe Ntintili. The film tells the story of three friends trying to find their happiness while maintaining images of success and acceptability. The three friends juggle life's surprising changes as they come to learn that "happiness doesn't come with a manual". The three will have to find out what truly makes each of them happy and then fight to get it in their unique way.