Tatort S2006E29 - Ritter - 21 - Liebe macht blind

A night like many in the big city of Berlin. A radio presenter (Jörg Thadeuzs) leads through his show for lonely hearts... a good-looking man standing alone is found dead in his apartment. The murder of the successful lawyer Mohr leads Ritter and Stark into the world of city singles. Mohr was a regular guest at various speed-dating establishments, although he had an affair with his attractive colleague Nina (Aglaia Szyskowitz). Was jealousy involved? Because there is also Kirsten (Elena Uhlig), who Mohr met at speed dating and with whom he started a relationship. Both women have a motive; and Kirsten, the impulsive saleswoman in a boutique, had also learned through an indiscretion that Mohr's law firm is not averse to tax fraud.
Kirsten flees when she realizes the police are on to her. But her older brother Paul (Timo Dierkes), who has a very close relationship with his sister, is also suspected of murder. The dazzling Kirsten is a thorn in the side of his pregnant wife Marie (Heidrun Gärtner). Knight and Stark have to deal with strong feelings and learn how dangerous they can be when hate develops from disappointed love.