To her mother's horror, Lena's father gives Lena a rat for her birthday, which turns out to be a seismograph of an impending family drama.

Student Markus Schneider works as a courier. Every day he chases through the streets of Berlin on his rollerblades to deliver documents on time. Little does he know that he is being used as a cocaine courier by a gang of corrupt police officers. He is also a convenient scapegoat when the crooks are looking for someone to frame for a double murder.

A coming out story. Susann and Tanja turn Berlin upside down on their birthday night and discover themselves in the process. Susann wants to experience something on her 18th birthday. In search of her boyfriend, she catapults herself into an adventure with a stolen car and a strange woman who leads her astray.