The Christmas Secret (2014) on Netflix

Plot summary

Christine Eisley has lost her job and faces eviction. Her ex-husband Brad is challenging her in court over custody of their children, Zach and Haley. She has also misplaced a star-shaped locket from her father, who disappeared when she was young. After she stops to call an ambulance for Judy, a shop owner having a cardiac crisis, Judy's grandson Jason arrives in town. Judy asks him to find the person who helped her, but Christine, assuming Jason is working for Brad, treats him with hostility. Christine finds a clerk job at Betty's deli-diner while Jason helps his grandfather Marshall in the toy shop and bonds with the children. Social worker Patricia informs Christine of Brad's court moves.