Bored of their wives, best friends, Meet, Prem and Amar, reunite after three years and decide to have an affair - but instead become the prime suspects in a murder investigation.
A small-time criminal, betrayed by his girlfriend and owing money to a fearsome crime lord, agrees to travel to Goa for a drug deal and becomes involved with a local woman and her much older husband, both of who want to kill each other.
Black Friday is a film about the investigations following the 1993 serial Bombay bomb blasts, told through the different stories of the people involved --police, conspirators, victims, middlemen.