A businessman is murdered outside his night club. Moser arrests a suspect shortly after the assassination and his team tries to interrogate him with no results. The man is part of a hired assassins network and gets to have Rex kidnapped. Richard Moser has to find Rex and keep the suspect from getting away.

A bag with human intestines is found in the sewers. A corpse with no clues for his identity and a very difficult case are waiting for inspector Moser and Rex,who went from the shower to the sewer.

When a stonemason is found dead in a cemetery, Inspector Moser is called to investigate the murder. A possible motive is the theft of Beethoven's skull the previous night. Inspector Moser and Rex have to trace down a killer and a thief.

A bomb explodes in a toy store window, the third in a string of Gurmann teddy bear bombings. With Rex taking care of a bedridden Richard, Stocki investigates a long list of disgruntled employees. The investigation takes a turn when Richard is visited by the heiress of the Gurmann toy company.

A young girl is found dead in the city outskirts. The girl was a talented pianist and all suspicions fall to her tutor,with whom she used to spend a lot of time.Inspector Richie Moser has to stop the melody of death.

A man recovering from a car accident in a hospital discovers that perhaps he is infected with HIV virus and decides to kill the people he assumed to be responsible. Richard and Rex have to stop a person who has nothing to lose.

A homeless man is brutally murdered on New Year's Eve. The next day, Stockinger's team is assigned to a woman's suspicious suicide.

Richard goes undercover to find out why patients at an institution are being murdered. He entrusts Rex to Stockinger's care; but he escapes.

A body is discovered in the park surrounding Schönbrunn Palace - a young lady wearing only a fur coat and lingerie on a frigid Vienna day. As they investigate, Stocki questions a witness who indicates the groundskeeper. But despite his criminal record, Richard remains unconvinced and enlists Rex's help to investigate a local gynecologist with ties to the dead woman.

A prisoner makes a violent escape during a visit to the dentist. His accomplice is wounded and left behind. Fleeing from the police, the escaped prisoner holds a ballerina class hostage and demands the release of his friend. It's up to Richard and Rex to diffuse the situation and save the day!

Moser and his team investigate the kidnapping of three old ladies and everyone seems to know more than them.

When a corpse is found inside a rubbish bin, Inspector Moser is called to investigate and runs into a complicated people smuggling network that has taken many lives. His life is in danger too.

When Hans Felsner, owner of a restaurant, has a heart attack, it is soon discovered that it was actually a murder.

A police dog, whose handler was killed while chasing a bombing suspect, uncovers an important clue and finds a new partner in a recently-divorced cop.