After a beloved family member is drowned in a devastating flood, Bede and Elin Sherwell want nothing more than to be left in peace to pursue their off-grid life. But when the very real prospect of fracking hits their village, they are drawn to frontline protests. During a spring of relentless rain, a series of mysterious threats and suspicious accidents put friendships on the line and the Sherwells' marriage under unbearable tension. As the river rises under torrential rain, pressure mounts, Bede's sense of self begins to crumble and Elin is no longer sure who to believe or what to believe in.