Luck is the story of gambling kingpin Karim Musa (Sanjay Dutt), who is a very lucky person seeing the story of his life. He remained the sole survivor when a mosque collapsed in Maharashtra when he was just a child of nine months and was amongst very few survivors of another incident at the age of 12. When he was 14, he challenged three friends to jump from a four-storied building and remained alive, though with some injuries, and won. He started gambling at 19 and since then tried out his luck in different places of the world and became known as Musa Bhai. To him gambling and drug smuggling have become old ways to get money, his latest interest is investment on people’s luck.