Northern Ireland, spring 1981. Hunger strikes, riots, power cuts, a homophobic serial killer with a penchant for opera, and a young woman’s suicide that may yet turn out to be murder: on the surface, the events are unconnected, but then things—and people—aren’t always what they seem. Detective Sergeant Duffy is the man tasked with trying to get to the bottom of it all. It’s no easy job—especially when it turns out that one of the victims was involved in the IRA but was last seen discussing business with someone from the loyalist Ulster Volunteer Force.

Tony, Hugh and Karen thought they'd seen the last of each other 30 years ago. Half a lifetime has passed, and memories have been buried. But when they are asked to reunite—to lay ghosts to rest for the good of the future—they all have their own reasons to agree. As they take the ferry from Northern Ireland to Scotland, the past is brought into terrible focus—some things are impossible to leave behind.

D.I. Duncan McAdam is dispatched home to the Misty Isle. A body has been found buried in a remote location on the Waternish peninsula. Well-preserved in the peat, Isla Matheson—missing for the better part of two decades—is revealed to a shocked island community. A teenage runaway is dead...and no one is talking.

Pandora—Dora—Condron wakes one morning to discover her 17-year-old daughter, Ellie, has not come home after a party. The day Ellie disappears, Dora is alone as her husband, Eamon, has already left for the day in his job as a long-distance lorry driver. So Dora does the usual things: rings around Ellie's friends...but no one knows where she is. Her panic growing, Dora tries the local hospitals and art college where Ellie is a student—but then the police arrive on her doorstep with the news her daughter's handbag has been discovered dumped in a layby.

Former soldier. Ex-copper. Current man on the edge. Shunned by his old colleagues, and dividing his time between a dead-end job and the bottom of a whisky bottle, former Police Scotland detective superintendent Bob Hoon’s life is a mess. Then an old face from Hoon’s Special Forces days turns up asking for help: His teenage daughter has been missing for months, the police have drawn a blank, and he needs the kind of help that only Hoon can provide. And besides, Hoon owes him one.