A mother leaves her abusive husband and children behind. Years later, she returns under a new identity, seeking revenge on her ex while navigating secrets and forbidden love, showcasing a mother's unwavering devotion.

25 years ago in Cyprus, Vagelio(Maria Mesariti) tries to escape from her violent husband, taking with her her 5-year-old son Michalis and her one-year-old daughter. Kyriakos, her husband, will stop her. And Vagelio is forced to go to Greece, leaving behind her two children. Michalis who drowned in the sea and Despina who gave her to a foundation. Today, fate forces her to return to Cyprus with her new family and with her new name. Memories will awaken for Eva (Elisabet Mutafi) and her mother's instinct will lead her on the path of revenge. Her ex-husband, Christoforos Xenos (Giorgos Ninios) is now a distinguished architect, married to a younger wife Alexia (Katerina Misichroni). At the same time, a great love is born between Marko (Dimitris Goutzamanis) and Alexia. An illegal but also doomed love between the secrets the past hides and the games played by the coincidences of the present. And in the lullaby of the butterfly, each verse of it and a secret. A series that praises mother's love and promises to take us on a journey to the power of love.