Ahmed (Amitabh Bachchan) and Mohan (Shashi Kapoor) are a couple of opportunistic scam artists who act as mock witnesses in court trials. Drumming up business at the courthouse, the unscrupulous duo gives whatever evidence the case requires -- for a fee, of course. Can this unethical pair be made to walk the straight and narrow? Rekha, Amrish Puri, Helen and Sanjeev Kumar round out the all-star cast.