After the unexpected death of Sophie's parents in a car accident, Holly and Messer are named as Sophie's legal guardians in their friends' will. Despite their initial animosity towards each other, they agree to move into Sophie's parents' house to take care of her together.
As they navigate the challenges of co-parenting, Holly and Messer begin to bond over their shared love for Sophie. They both struggle with balancing their demanding careers - Holly as a caterer and Messer as a sports director - with the responsibilities of raising a child.
Their relationship becomes even more complicated when Messer starts dating a younger woman, prompting jealousy from Holly. However, they eventually realize that they have developed romantic feelings for each other.
As they come to terms with their growing attraction, Holly and Messer must also confront their fears and insecurities in order to make their new family unit work. Ultimately, they learn to communicate and compromise, finding a balance that allows them to create a happy and loving home for Sophie.