Jacek Żytkiewicz, a taxi driver for the Warsaw Taxi Company (WPT), drives a blue
taxicab No. 1313 in turns with his sub Stanisław Lesiak. In an idiosyncratic accident, the cab is crushed by a falling mouse statue and Stanisław lands in the hospital. Simultaneously, Kasia Piórecka works as a minibus driver for the Tuchola Forest Cooperative Communication Equipment Factory. After a
sexual harassment attempt, she resigns from a job she never liked and applies to be a taxi driver for WPT, but her application is rejected due to safety concerns. At that time, the taxi driver was exclusively a male job in Poland and with several attacks on or even murders of taxi drivers it was believed that a woman might be even more prone to be attacked. This does not stop Kasia, and again, disguised
en homme as Marian Koniuszko, she tries and becomes employed in WPT. She, being Marian (a male name in Polish), becomes a new sub of Jacek in a new, yellow-painted taxicab No. 1313. Living a double life is a complicated endeavour. At certain point, Jacek meets Kasia in her female guise, falls in love and starts dating her. Jacek is unaware that his girlfriend is the same person who is his sub. Kasia is still not willing to reveal her double identity fearing losing her job. This state leads to many complicated situations. Things get even worse when it happens that their taxicab is a key instrument in a large heroin-smuggling plot and two rival gangs will try anything to regain it at any cost. ==Episodes==