Trailer: Sekali Aku Bahagia

Aireen and Naufal are siblings. Aireen falls in love with Muaz, a worker at her brother's shop. Although already married to Rania, Muaz marries Aireen without disclosing his marital status. Conflict begins when Aireen discovers that Muaz and Rania are already in a household together and have a daughter. Rania is unaware of her husband's infidelity. The situation becomes more complicated because Aireen refuses to be in a polygamous marriage and only wants to have Muaz for herself. Rania, meanwhile, must now rise up and fight for her child's future.