Two sisters-in-law live as neighbors in the same apartment building with the mother-in-law who promised to give a beautiful sea-view penthouse to the one who delivers the first grandchild. A battle of egos erupts on social media.

Horrified by the new girlfriends of their respective sons, three sisters-in-law – Clara, a socialite, Matis, a widowed professional, and Nena, a naive housewife – make an alliance to get rid of their undesirable daughters-in-law.