Ajay Dixit is an image-conscious narcissist, who teaches history at a school in Lucknow. He hates his life of lies, despite the respect he is held in, thanks to his philosophical tendency to "fake it till you make it". He has grounded his beautiful epileptic wife Nisha, who is much more intelligent than him, since he does not want her seizures to ruin his reputation.
Ajay finds himself and his image in jeopardy when he slaps his student, Atul Raghuvanshi, in frustration over a doubt regarding World War II. Atul turns out to be the son of MLA Vishwas Raghuvanshi. Out of despair of wanting to escape the wrath of the MLA, Ajay decides to visit places across Europe he deems were important to World War II, taking Nisha along with him as his parents hope it could resolve their marital conflicts. This sets them on a journey that changes their entire perspectives and their views on interpersonal conflicts, as they cover both life and history lessons along the way.