When a young Spanish lawyer's wedding plans are threatened by her grandmother's unexpected decision to tie the knot with another woman, she must navigate a complex web of family secrets and societal expectations in this sharp-witted comedy about love, identity, and acceptance. "So My Grandma's a Lesbian!" is a heartwarming and hilarious exploration of what it means to be true to oneself, even when those around you may not understand or approve. As Eva confronts her own feelings about the upcoming nuptials, she must also confront the prejudices of her ultra-conservative family, leading to a joyful and empowering celebration of love in all its forms.