The Outer Limits: Season 1, Episode 17

1 - 17: Don't Open Till Doomsday

In 1929, a local scientist delivers a mysterious present to newlyweds, with the note "Don't Open Till Doomsday" on it. The groom Harvey Jr. disappears shortly thereafter, and his bride Mary waits over 35 years until a new set of newlyweds comes along.