Episode 1
Eight-year-old Johanna does not return home from playing on September 2, 1999. The case will keep the police busy for 18 years.
Episode 2
From one day to the next, an elderly couple disappears without a trace.
Episode 3
10-year-old Mirco doesn't come home from playing at night. Sven Voss solved one of the most famous child murder cases in Germany in this episode of “XY”.
Episode 4
A 57-year-old department head was kidnapped in the early morning of January 17, 2003, right in front of her workplace. There is no trace of her.
