August 15, directed by Shaji Kailas is the Sequel of ‘August 1’ directed by Sibi Malayil in 1988. Mammootty staring again as Perumal (DSP), a crime Branch Officer known for his brilliance. Who comes for investigating the murder attempt on the Kerala Chief Minister. Famous script writer S N Swami has done the script for the film and M Mani has produced the film under Aroma Movie. Other casting are Nedumudi Venu as V. G. Sadasivan, Chief Minister of Kerala, Siddique as an unnamed professional assassin, the antagonist, Jagathy Sreekumar as an aide at Chief Minister's residence, Meghana Raj as an officer who works in the Cyber Cell, Works for Perumal. Sai Kumar as State Secretary of the ruling party, Shwetha Menon as a doctor, Lalu Alex as ADGP Balachandran Chullikkadu, Deepesh as Mammoottys assistant .