When her husband is framed and imprisoned for serial murders, a doting wife must perform a copycat murder, to prove her husband's innocence.

This is a story of four friends & school buddies. Out of them, only Ashim is an earning person, he is a doctor. Earlier, they started a Bangla Band, where Hari was the lead singer, but they were heavily thrashed by the public in a stage show in North Bengal. They decided not to sing any more. Then they started a traveling agency. On their first trip, they start the journey with only 9 passengers and a girl who later joins them. The film deals with their journey via Kalimpong. The ten passengers are of ten different types and also the four tour operators are of four different natures. As the journey progresses, their characters were revealed one by one.

Challo Driver is the story of Arjun Kapoor, a fiery young construction magnate and Tanya Malhotra, an arts graduate from Chandigarh — who unwittingly becomes his chauffeur. He has a penchant for firing drivers and she has a proclivity for quitting jobs until fate — and an unassuming bet — throws them into the deep end and they have to stick out together for a stipulated period of 6 months!