Splitting The Difference, a comedy created by filmmaker Kat Coiro (And While We Were Here, A Case Of You), has sold to ABC with penalty. It hails from Eva splittingthedifferenceLongoria’s UnbeliEVAble Entertainment and Universal TV, where the company is under a first-look deal. The project is based on Tré Miller-Rodriguez’s memoir Splitting the Difference, which chronicles her life in New York as a 34-year-old widow who reunites with the daughter she gave up for adoption at 18.

The ABC show, written by Coiro, centers on a buttoned-down 17-year-old who reunites with her recently widowed 36-year-old biological mom and they become the heart of a patchwork family bound by more than blood. Coiro and UnbeliEVAble’s Longoria and Ben Spector executive produce.

Longoria and Spector were introduced to Miller-Rodriguez by IPG’s Amy Schiffman and sparked to her book. The two brought the project to writer-director Coiro through her manager Oly Obst.

This is the fifth sale for UnbeliEVAble this development season. Longoria and UnbelEVAble are with CAA and Brillstein; Coiro’s with WME and 3 Arts and Bloom Hergott; Miller-Rodriguez with Intellectual Property Group.