Aei movie begins with Sakthivel (Sarath Kumar) selling electrical accessories along with his friend Palani (Vadivelu) leading a peaceful life at Palani. He comes across Anjali (Nameedha) and falls in love with her.Sakthivel's past is made to unfold in a flashback. He is a military officer who joins his friend Mani (Kalabhavan Mani) on a vacation. The duo decides to reform the society and cleanse the police department by taking as hostage a few corrupt police officers.
In the final days of World War II, the Nazis attempt to use black magic to aid their dying cause. The Allies raid the camp where the ceremony is taking place, but not before a demon - Hellboy - has already been conjured.
FBI agent Frank Castle had it all: a loving family, a great life, and an adventurous job. But when all he held dear is taken away by a ruthless crime lord, Castle returns from the dead as "The Punisher," serving as judge, jury and executioner.