Maria and Mariana are sisters but they are poles apart. Mariana is wild while her elder sister is moderate and take great interest in her education and career. When they become adults, Maria joins the police force while Mariana remains the same. However, Jefri’s presence changes Mariana’s life. But her disappointment, Jefri chooses to marry Maria instead of her. Tony and Robert, leaders of criminals gang which Maria is trying to smash, kidnap Mariana. The ever responsible Maria risks her own life to save her sister.

Maria Mariana

Maria is rushed to the hospital and is saved by Dr. Faris who successfully extracts the bullet from her body. Maria is assigned to the Special Unit of the Royal Malaysian Police force. She falls in love with Dr. Faris. Her unit has been directed to smash a syndicate which is trafficking ecstasy pills and drugs in the city. Meanwhile, Mariana is visited by Remy, a colleague who is attracted to her. Roy, her ex-boyfriend reappears causing turmoil in her life and Mariana reverts to her old wild ways. The relationship between the two sisters, Maria and Mariana becomes strained again.

Maria Mariana II

This film is about a special police unit, headed by Inspectors Mazlan and Aleeza, which was set up to battle major crime syndicates dealing in pirated porn VCDs and ecstasy pills. Two of the major rival syndicates are headed by Castelo and Rafayel. Things are further complicated by the arrival of Inspector Shafikah and a TV journalist, Azura.