for anyone who may not know what a one actor movie be like and this be the best example . this plot be ridiculous and and really make no sense . it full of cliched situation and hackneyed line and melodrama and comedy . you name it . but amitabh bachchan can make anything convincing and and this movie be by no mean an exception . everyone turn in a decent performance shashi kapoor and waheeda rehman and ranjit and om prakash and smita patil . but it be the megastar who overshadow everyone with his tower presence . without him and this movie would have be a non starter . the story be about separation or mistaken identity or misunderstanding or love or hate or loyalty or good v evil everything and really . amitabh be a brilliant performance on all count and in an otherwise silly film . and do i mention that it be ridiculously funny .