Invitation is a 1952 American melodrama film directed by Gottfried Reinhardt and starring Van Johnson, Dorothy McGuire and Ruth Roman.

Johnson and McGuire play a happily married couple, until the wife learns a secret about her husband.

Ellen Pierce (Dorothy McGuire) is very happily married to architect Dan (Van Johnson).

Her wealthy father (Louis Calhern) and the family doctor (Ray Collins) have kept from her the fact that she probably only has a few more months to live.

He tells her about a Doctor Toynberry who has come up with a new technique that has a good chance of curing her and begs her to undergo the operation he has arranged for her.