Talaash: The Hunt Begins...

Babu works for three underworld dons, and must go to prison to protect them. When his sentence is over, he returns home to find that his wife, Purnima, son, Arjun, and daughter, Pooja, living a destitute life. When he confronts his bosses, he is beheaded in front of his wife and children, and his daughter is abducted. Purnima loses her mind, and is hospitalized in a mental hospital. (imdb)