The Stranger Within (1974)

Despite her husband’s vasectomy, Barbara Eden miraculously finds herself pregnant. Before long it becomes more obvious that this pregnancy is not a normal one. She craves vast amounts of salt, reads voraciously, and prefers unnaturally cold temperatures. Reruns of I Dream of Jeannie and Harper Valley P.T.A. didn’t prepare me for how great Eden is in the role. She fully commits to a script that asks her to act more and more ridiculous. The film takes its time building to its conclusion and it is not until the climax that there’s even a hint of the reasons behind all of the strange activity.