bridal glands

Early tomorrow, Turner Classic Movies is showing the following...

The Corpse Vanishes (1942)
A mad scientist kills brides and uses their glands to keep his wife alive.
Cast: Bela Lugosi, Luana Walters, Tris Coffin, Elizabeth Russell
Director: Wallace Fox
BW-63 mins, TV-PG

Glands?
And what's so special about bridal glands?
On second thought, don't answer that question.