A young bride believes her husband has been killed. After a suitable period of mourning, she re-marries. But then her "dead" husband comes back and tries to extort money from her.
Cage of Gold
In post-WW2 Britain, a young woman marries an old flame but after he disappears, and is later declared dead, she re-marries, only to be blackmailed by the supposedly-dead first husband who suddenly re-appears in her life, in need of money.