That's a good question: if I get a good transplant of lungs, kidneys and livers, will I give up smoking? If I get a good brain transplant, will I suddenly become another Einstein? The heart is supposedly a conveyor of feelings, but really is only a muscle doing all the mechanical necessities to keep the rest of the body alive. Whether you have a Ferrari engine in a '56 Chevrolet or you put a 2 cylinder DKW engine in a Porsche, obviously different things will happen. But a change of heart in a person........?
So a deliciously rich woman gets shot and a lovely Mädchen Amick picks up her heart, which makes all her feelings for men go a bit astray. She just has to get to know the dead woman's husband. Interesting but improbable theory as a concept for giving us a lot of Ms. Amick, but not much else to go on. About the only reasonable sincere person in the whole film is Dr. Alice Morisaki who did the transplant. However, the film has its interest, I suppose, and is fit for those who love mysteriously suspenseful goings-on with a bit of sex thrown in for good measure.
The ending should have you in guffaws.......... Sorry, Ms. Vogelsang, this film got away from you, even though it was only for TV.