Orphaned Judy Abbot relates her college adventures in letters to the mysterious benefactor that she calls Daddy-Long-Legs.

The oldest at a dreary home for foundlings, Judy Abbott finds her life completely changed when, with the help of a mysterious benefactor, she is granted her wish to be able to go to college. A meeting with the rich, handsome uncle of her snobbish roommate sets Judy on the road to discovering her secret friend.