When an abandoned lobster trawler is found adrift off the coast of Quebec's Gaspé Peninsula, DS Joaquin Moralès begins a straightforward search for the boat's missing captain, Angel Roberts – a woman in a male-dominated world. But Moralès finds himself blocked at every turn – by his police colleagues, by fisheries bureaucrats, and by his grown-up son, who has turned up at his door with a host of his own personal problems. When Angel's body is finally discovered, it's clear something very sinister is afoot, and Moralès and his son are pulled into murky, dangerous waters, where old resentments run deep…