During the 1950s, Indian Navy Officer Rustom Pavri (Akshay Kumar) is happily married to Cynthia Pavri (Ileana D’Cruz). Their marriage hits the rocks when Rustom discovers his wife’s affair with his friend Vikram Makhija (Arjan Bajwa). After returning early from a trip to the seas, Rustom discovers Vikram’s love letters in Cynthia’s cupboard. While trying to find where she is, Rustom also witnesses both of them together. He returns home and waits for Cynthia to return and then confronts her with the love letters, but walks away before Cynthia could explain anything. Rustom then issues himself a pistol from Naval Ship’s Armory and makes a Trunk call to Delhi. Afterward, he seeks for Vikram, first in his office and then at his home. After Rustom enters Vikram’s bedroom, the servant hears three gun shots and rushes to the room, only to discover Vikram’s body lying in the pool of blood and Rustom walking away with pistol in his hand. Rustom immediately surrenders to police and Inspector Vincent Lobo (Pawan Malhotra) starts investigation.