The Steel Harp.

Hanna, a cantankerous nonagenarian, patrols the Golden Gate Bridge every day and intervenes when people get too close to the edge. On what was to be Hanna’s last day as a 'bridge watcher', she stops Amy, a younger woman as stubborn as Hanna herself, from jumping. As the holiday season sets in, Amy and Hanna challenge each others' resolve and form a bond.