That sounds an awful lot like the “it was all a dream” season of Dallas. Although a lame retcon, it was probably the only way to bring back Patrick Duffy after they killed off his character without long lost twins or clones coming into it. 😉
Thanks, that was probably it. I was young and my memory is foggy, but I had the impression that it was a big deal and not some run-of-the-mill daily soap nonsense. Granny was pissed.