Although Hannes Beck (Bert Tischendorf) studied law at some point, the fourfold father never had the need to apply his knowledge to solid work. This changes abruptly when his wife, the prosecutor Kirsten (Annika Ernst), cheats on him with her colleague (René Steinke). Hannes moves out and takes the kids with him. For the first time in his life he has to go to work properly and inevitably takes a job as a public defense lawyer. Fortunately, his 54-year-old domestic help Yasmina (Andreja Schneider) was a judge in her old homeland of Croatia. Without further ado, he hires her as a lawyer's assistant. Patent, clever and absolutely loyal she helps him with his difficult cases. Hannes' private life has its ups and downs: while his ex-wife wants to take the kids away from him, he meets his former fellow student Susanne (Julia Dietze) at court, and gradually develops feelings for her.