In the heart of England's Lake District, Sunday Forrester lives by her own delicate routines, her life quietly revolving around her teenage daughter, Dolly, and her treasure of Sicilian folklore, which provides solace from a world not made with her autistic sensibilities in mind. It is 1988, and Sunday's subtle differences are not recognized as signs of autism, leaving her to navigate life's intricacies with her old etiquette handbook as a guide. The arrival of the vibrant and enigmatic couple, Vita and Rollo, signifies a turbulent turn in Sunday's life. Charming their way into Sunday's regimented existence, they offer her a taste of being truly seen. Yet beneath their glossy exterior hides a dangerous yearning. Vita, in particular, covets something Sunday possesses effortlessly: a daughter. As Sunday becomes enmeshed in their lives, what begins as camaraderie soon unveils darker undertones, stitching a complex tapestry of love, motherhood, and the journey towards self-acceptance. 'All the Little Bird-Hearts' is a compelling psychological drama that explores with wit and sophistication the intricacies of human connections through the unique perspective of an autistic protagonist.