Nobody likes The Complaints - they're the cops who investigate other cops. Complaints and Conduct Department, to give them their full title, but known colloquially as 'the Dark Side', or simply 'The Complaints'. Malcolm Fox works for The Complaints. He's just had a result, and should be feeling good about himself. But he's middle-aged, sour and unwell.

'And in Edinburgh of all places. I mean, you never think of that sort of thing happening in Edinburgh, do you...?' 'That sort of thing' is the brutal abduction and murder of two young girls. And now a third is missing, presumably gone to the same sad end. Detective Sergeant John Rebus, smoking and drinking too much, his own young daughter spirited away south by his disenchanted wife, is one of many policemen hunting the killer.

When a grisly murder occurs on the Isle of Lewis that bears similarities to a brutal killing on the mainland, Edinburgh detective Fin Macleod is dispatched to the Outer Hebrides to investigate, embarking at the same time on a voyage into his own troubled past. As Fin reconnects with the people and places of his tortured childhood, the beautiful island and its ancient customs once again begin to assert their grip on his psyche. Every step toward solving the case brings Fin closer to a confrontation with the dark events of the past that shaped - and nearly destroyed - his life.

A man stands bewildered on a deserted beach on the Hebridean Isle of Harris. He cannot remember who he is. The only clue to his identity is a folded map of a path named the Coffin Road. He does not know where this search will take him. A detective from Lewis sits aboard a boat, filled with doubt. DS George Gunn knows that a bludgeoned corpse has been discovered on a remote rock 20 miles offshore. He does not know if he has what it takes to uncover how and why.

On a freezing morning four drunken students stumble upon the body of a woman in the snow. Rosie has been raped, stabbed and left for dead in a cemetery. The only suspects are the four young men now stained with her blood. Twenty-five years later the police mount a cold-case review of Rosie’s unsolved murder, and the four are still suspects. But when two of them die in suspicious circumstances, it seems that someone is pursuing their own brand of justice....

In 1965, five teenage friends fled Glasgow for London to pursue their dream of musical stardom. Yet before year's end three returned, and returned damaged. In 2015, a brutal murder forces those three men, now in their 60s, to journey back to London and finally confront the dark truth they have run from for five decades. Runaway is a crime novel covering 50 years of friendships solidified and severed, dreams shared and shattered and passions lit and extinguished, set against the backdrop of two unique and contrasting cities at two unique and contrasting periods of recent history.

An illegal immigrant is found murdered in an Edinburgh housing scheme. Is it a racist attack, or something else? Rebus is drawn into the case, but he has other problems: his old police station has closed, and his masters would rather he retire than stick around. As Rebus investigates, he must visit an asylum seekers' detention centre, deal with the sleazy Edinburgh underworld, and maybe even fall in love. Meanwhile, Siobhan has problems of her own.

It is a cold January morning and Shetland lies buried beneath a deep layer of snow. Trudging home, Fran Hunter's eye is drawn to a vivid splash of colour on the white ground, ravens circling above. It is the strangled body of her teenage neighbour Catherine Ross. The locals on the quiet island stubbornly focus their gaze on one man – loner and simpleton Magnus Tait. But when police insist on opening out the investigation a veil of suspicion and fear is thrown over the entire community. For the first time in years, Catherine's neighbours nervously lock their doors, whilst a killer lives on in their midst.

When Detective Sime Mackenzie boards a light aircraft at Montreal's St. Hubert airfield, he does so without looking back. For Sime, the 850-mile journey ahead represents an opportunity to escape the bitter blend of loneliness and regret that has come to characterise his life in the city. Travelling as part of an eight-officer investigation team, Sime's destination lies in the Gulf of St. Lawrence. Only two kilometres wide and three long, Entry Island is home to a population of around 130 inhabitants - the wealthiest of which has just been discovered murdered in his home.

When DI Anderson and DS Costello are called to investigate the discovery of a body in a Glasgow attic they soon identify the victim as a suspect in a decade-old case: the rape and attempted murder of a young student by two men. But where is the dead man's accomplice, 'Mr Click'? When another young woman is brutally attacked, detectives Anderson and Costello realise this psychopath has started working once more....