Kočky (2006)

Věra and Vladimír were a childless married couple. They were united by love, work, and the desire to have a child. When Vladimír suddenly dies at the age of 45, Věra finds herself at rock bottom. Neither her mother's nor her sister's consolation helps. Neither does feeding the cats in the yard behind the house. But the main blow is yet to come for Věra: it comes in the form of payment slips she finds among her husband's belongings, confirming regular payments to an unknown woman! Věra turns to a family friend, Pepa, her husband's colleague from the research institute. While drunk, he reveals that her husband has been having an affair with another woman and has a child with her. Věra is shocked and offended. She had wanted a child so badly, and Vladimír ended up conceiving one with a complete stranger. Věra sets out to find this unknown woman. She wants to know what makes her so amazing that she captivated her husband...