‘Marakkar Lion of the Arabian Sea’ portrays the courageous life-events of a rebellious naval chief, Kunjali Marakkar the fourth, who fought against the Portuguese in the ancient times. He was the fourth naval chief of the Calicut Zamorin. The film revolves around him who was also the first Indian Naval Commander and Indian freedom fighter for the war against the Portuguese. He is said to have won 16 such battles with his impeccable strategies and fighting skills.
Set in Kanhangad, a modest town in North Kerala, arrangements are underway for Vijayan's second daughter, Suja's engagement. On what should be a perfect ceremony, the bride is having second thoughts, her father is in a financial mess, and as members of their family arrive one by one, family secrets start to surface. Set within the two days preceding the ceremony, the entire film happens in and around Vijayan's house.
A pianist pretends to be blind for inspiration, witnesses a murder. He suddenly finds himself in a blind spot having to deal with the victim's wife, the murderer and the bizarre events that unfold. During this ordeal he loses his eyesight for real and struggles to save his life from the murderous duo. Does his girlfriend believe him? What is the audience's 'take' in the end.