Rabbit, Run (1970)

3 months ago Rabbit Angstrom ran out to buy his wife cigarettes. He hasn't come home yet.

Harry "Rabbit" Angstrom comes home one day from his dead-end job to find his pregnant wife Janice asleep, splayed in front of the TV, highball glass in hand. After a moment's contemplation, he decides to leave. Taking his coat and car keys, he's off and running on a rambling, aimless journey.