This fast-paced criminal series presents a unique blend of criminal and psychological plots. The main characters is young policewoman, Ada, who starts her dream job at Polish Police Headquarters. She joins team led by experienced officer, Maciej Wolski . He is not enthusiastic about her presence and treats her as if she was an intruder. They seem to belong to totally different worlds but their job is to solve criminal cases such as mysterious murders, kindappings and frauds so they need to find common ground and cooperate. The viewers of the series have the opportunity to follow not only thrilling criminal cases but also a fascinating transformation of the main characters.