Sophia Pinsky is doing just fine: she has a job, an apartment, and a girlfriend. That is, until her girlfriend breaks up with her and her grandfather dies on the same day. As her life starts to unravel, Sophia moves back in with her overbearing Russian-Jewish grandmother in the Boston suburbs. When her grandmother reveals that not only is she dating again but she's in love with the family's rabbi, Sophia is pitted grandmother in a struggle to define loyalty and love, all while trying to become a "real adult," once and for all.