When Dum, a young peasant boy, falls in love with Rumpocy, the daughter of a wealthy city family, they vow that, whatever happens, they will one day be together... Ten years on, Dum is the notorious gang-member "Black Tiger". When he is commanded to execute police captain Kumjorn, Kumjorn has one last request- that Dum explain to his fiancee how he died. Dum realises that Kumjorn's fiancee is, in fact, Rumpocy and is unable to ruin what he believes is her happiness. His decision to release Kumjorn is what finally unites the childhood sweethearts. Will it also be the one that tears them apart?