Julia and Jakob weren't prepared for this situation: They have to ask their boss, Nele, to hand over their badge and gun. During a botched arrest, she shot Kevin Krause, a petty criminal and junkie.

Just a moment ago, the happy bride Sandra felt as if she were still in heaven. But now, a single short sentence shatters all her dreams: "Tim is dead." Her mother, Roswitha, can only comfort her daughter by holding her close. That morning, Nele and her colleague Paul had fished Tim Kreindel's body out of Lake Constance. All hopes rested on the talented young chef to restore the once-renowned restaurant "Fischerhütte"—run by Roswitha—to its former glory. Sandra's brother Stefan, whose down-to-earth cuisine had led to the restaurant's decline, was a guest at the fatal bachelor party. But is his demotion to assistant chef motive enough to murder Tim? And what about Urs Holtmann, who is discovered by Jakob and Julia sleeping on a park bench not far from the crime scene, shirtless and with a blood alcohol level of 1.4 per mille? He gives Jakob a black eye as a greeting and gives Julia a huge scare. She used to date Urs and quickly finds herself in a dilemma. Urs claims to have a blackout and quickly becomes the number one murder suspect.

Actor Michael Hartmann has seen better days. The TV star, once celebrated as the "Alpine Cop," is now reading from his new book to an exclusive audience in Meersburg. Among them are Nele and Paul, whom Hartmann still knows from his school days. But suddenly, a sinister bomb device with a timer causes panic. The tension escalates even further when a caller—former KSK commando Rainer Schladen—makes his demands clear: The detectives have three hours to get Hartmann to reveal the truth about the death of his wife, who had eloped with the "Alpine Cop." He claims Hartmann killed her. If Hartmann doesn't confess to the murder, all three of them will die.