"How is he? Will my son ever recover from the bugs that turned his brain to mush?"
The doctor pointed to where the thirty-seven year old was playing with toys on the floor. "It's been five years now and he has the brain of a child, give it another five and we can start the basics of teaching him magic again. He knows who you are but...but he will never have the same personality again, and by the time he regains all his magic skills at their former levels he will be in his sixties."
And in the name of the great and powerful I command thee to return to your body, hearth and soul, so that you might walk again and continue in the gods plans.
See that. . . wait. . . what!?! NO! I knew it was too risky here. You have brought ruin to us all. Why you ask? Ready your weapon, a traveler has come.
-Father Hayden, performing a ritual on the deceased outside the protection of the church.
The PCs come across a town with a strange curse: Every morning, those who have grown up here wake up with the memories of someone else. They do not find this strange and have no idea it is happening. They calmly wake up and start these new lives as though they have always been that way.
The cause: A wizard who lived there was spurned by a maiden he was infatuated with. His attempt to manipulate her memories into believing they were already together and that she loved him went horribly awry.