When a woman’s body is discovered beneath the waters of a rural lake, the arrival of a Dublin detective unsettles a small lakeside community and places unexpected pressure on Peggy Casey, a young publican struggling to keep her family business afloat. As tensions simmer between Peggy and her siblings over the future of the pub, the investigation begins to expose long-buried truths – about the dead woman, the place they call home, and the fractures within the Casey family itself. Set over a sweltering weekend in 1970s Ireland, the film blends intimate family drama with a quietly unfolding mystery.