Without the slightest trace, an antique jewel collection disappears from a house along one of the great canals in Amsterdam. Inspector DeKok feels compelled to help the victim of the theft, unknowingly signing up for a homicide case, as well. Soon after commencing his investigation into the robbery, DeKok and his partner Vledder are called to the foot of The Criers' Tower. A clown lies dead along the canal with a large, shining knife protruding from his back, creating a blossom of blood ar...

Inspector DeKok finds himself in the midst of outwardly disparate motives and personalities surrounding the deaths of two reformed junkies and their landlady, a former prostitute. However, there is one connection in the madness, because music threads its way among and around the list of suspects and victims. DeKok discovers that the trail leading to this melodious murderer is as long as a symphonic masterpiece.

As has been her habit since the death of her husband, Mrs. Van Haesbergen does nightly rounds in the large office building where she resides. Her husband had been the building superintendent, and an apartment on the top floor came with the job. One night she encounters the managing director in the boardroom, sitting in his chair at the head of the table. She hastily walks up to him, and to her horror, she finds him dead. She rushes up to her apartment to call someone, but who? Deciding it ...

Inspector DeKok is faced with a grotesque double murder in a well-known Amsterdam hotel. He finds the murder victims looking like macabre wooden harlequins. Inspector DeKok must unravel clues from two unexpected characters: a six-year-old girl who has trouble sleeping, and a respected accountant who seeks DeKok's advice on committing the perfect crime. But when DeKok meets with the murderer, he tries everything possible to prevent the man from giving himself up to the police…

At the request of the Belgian police, Inspectors DeKok and Vledder attend the funeral of a murder victim. The body was fished out of Antwerp's Scheldt River, but brought back to Amsterdam to be laid to rest there. During the service DeKok spies the face of a man long known to be dead. Further bodies are discovered, apparently they too were poisoned and dumped in the river. DeKok is forced to venture from his beloved Amsterdam and travel to Bloedberg ("Blood Mountain"), a notorious neighbor...

Women are checking in to Slotervaart Hospital, but not checking out. According to hospital files, they were never even there. Inspectors DeKok and Vledder are called upon to investigate this alarming disappearing act. Eerily, the people closest to these vanishing women all comment on a change in their faces: they have become listless, fatigued, and seemingly wear a 'mask of death'. All indications point to foul play, but the bodies have yet to turn up. DeKok is stumped as to how these wome...

Inspector DeKok and his partner Vledder are ordered to protect the eccentric Manfred Nettelhorst's art treasures, exhibited during a special showing in Amsterdam. But before the exhibition has come to a close, the two detectives are called away to a nearby apartment building to investigate the murder of a man handcuffed to a radiator, shot execution style. That same night, an exquisite silver ewer is stolen from the exhibition. Following the trail, DeKok stumbles across an invisible line b...

Although at first it seemed to be a case for the narcotics division, this latest crime soon evolves into a series of sinister murders, which seem almost impossible to solve. Never before have inspectors DeKok and Vledder been so involved in a case where murder, drug smuggling, and child prostitution are almost daily occurrences. Blackmail enters the picture, and meanwhile bodies continue to be found. In the past even a single murder used to dominate the front pages of the newspapers for we...

A beautiful, free-spirited young woman has gone missing, and those closest to her fear for her life. Inspector DeKok is soon called upon to find out her whereabouts. It quickly becomes clear that this Nanette may have harbored a dark side, one that embraced blackmail, emotional cruelty, and a wicked selfishness. The more DeKok learns of the beguiling Nanette, the more he feels that he is on the trail of a dead woman. DeKok's suspicions are confirmed with a phone call: the dismembered body ...

DeKok takes on Igor Stablinsky, a man accused of bludgeoning a wealthy old man and his wife. To DeKok's unfailing eye the killing urge is visibly present in the suspect during questioning, but did he commit this particular crime? All signs point to one of the few remaining grand estates in Holland. The answer lies within a strange family, suspicions of incest, deadly geese, and a horrifying mansion.

Inspector DeKok finds himself in the midst of outwardly disparate motives and personalities surrounding the deaths of two reformed junkies and their landlady, a former prostitute. However, there is one connection in the madness, because music threads its way among and around the list of suspects and victims. DeKok discovers that the trail leading to this melodious murderer is as long as a symphonic masterpiece.