When Deb, an author and publisher, survives the bomb blasts at Chandni Chowk, he knows his life is nothing short of a miracle. But even as he recovers, his feet take him to where the blasts took place. From the burnt remains, he discovers a diary. It seems to belong to a dead man who was deeply in love with a girl. As he reads the heartbreaking narrative, he knows this story must never be left incomplete. Thus begins Deb’s journey with his girlfriend, Avantika, and his best friend, Shrey, to hand over the diary to the man’s beloved.

All Debashish cares about is getting laid. His relationships are mostly short-lived and his break-ups messy until he falls in love with the beautiful and mysterious Avantika. When she returns his feelings, he is thrilled. However, his joy is short-lived as Avantika walks out of the relationship. A brokenhearted Debashish plunges into depression and his life takes a dizzying downward spiral. He finds himself without a job, friends, or a lover. Loneliness strikes him hard. That is when his friend Amit comes to his rescue and they start putting the pieces of his life back together.

It's been two years since Raghu left his first love, Brahmi, on the edge of the roof one fateful night. He couldn't save her; he couldn't be with her. Having lost everything, Raghu now wants to stay hidden from the world. However, the annoyingly persistent Advaita finds his elusiveness very attractive. And the more he ignores her, the more she's drawn to him till she bulldozes her way into an unlikely friendship. What attracts at first, begins to grate. She can't help but want to know what he's left behind, what he's hiding, and who broke his heart. She wants to love him back to life.

Raghu likes to show that there is nothing remarkable about his life - loving, middle-class parents, an elder brother he looks up to and plans to study in an IIT. And that’s how he wants things to seem - normal. Deep down, however, the guilt of letting his closest friend drown in the school’s swimming pool gnaws at him. And even as he punishes himself by hiding from the world and shying away from love and friendship, he feels drawn to the fascinating Brahmi - a girl quite like him, yet so different. No matter how hard Raghu tries, he begins to care....

Aisha is a precocious 17-year-old who idolizes her mother and wishes to have a better relationship with her older brother. Twenty-three-year-old Danish has never been able to do anything that would make his parents proud, living as he is in the shadow of his genius younger brother. Aisha and Danish’s paths were never meant to cross, but fate usually has a way of bringing unlikely people together, sometimes through the most unfortunate means.