Dr. Zoltán Széphelyi, the gynecologist and prospective head of the Agapé Clinic, secretly performs treatments on his patients that have irreversible consequences. But the real problem begins for him when he destroys oligarch Zsolt Ludmann's future plans with an illegal hormone cocktail. Mellékhatás(Side Effect) is a two-season series starring Bálint Adorjáni, Alexandra Borbély, Zsolt Nagy, Réka Tenki, and Dóra Sztarenki. In this Hungarian-developed thriller series directed by Richárd Dániel Kovács, the complications only intensify as the influential and corrupt Zsolt Ludmann's threats push Dr. Széphelyi Zoltán into committing increasingly serious crimes.