Retired yakuza gangster Shuji moves back from Osaka to a remote coastal village to start a new life as a fisherman with his family, his arrival from the city coinciding with that of the beautiful bar hostess Keiko. Keiko's new bar, as its name Hotaru ('firefly') suggests is soon acting as a magnet for all the local fishermen, much to the chagrin of their wives. Not soon after the arrival of Keiko's roguish lover Yajima, also an ex-mobster, the locals are drawn into a host of collective vices including gambling and all-night drinking sessions.