Budd Grossman

Anthropology Professor Bruce Patterson (Terry Thomas) has the natural British charm that allures women automatically. When his fiancée Helen Bushmill (Celeste Holm) is abroad for an extended time, he has to fight the neighborhood ladies and his students away. Helen has failed to tell him that she has a seventeen year old daughter Libby (Tuesday Weld) who shows up at her mothers home unaware that she in engaged. (imdb)

Two high school students manage to keep their marriage a secret from their family and friends, but that all changes when she becomes pregnant. (imdb)