Complex sentence: Each episode has a supplemental narrative of Tyler's experience from the point of view of an unnamed child psychologist and his attempt to figure out what the problem is and who' Christian' is whom Tyler keeps saying in a delirious state is coming to get him.
Split into simpler sentences: Each episode has a supplemental narrative of Tyler's experience from the point of view of an unnamed child psychologist. The child psychologist attempts to figure out the cause of Tyler's condition and the identity of'Christian,' an individual who Tyler, in a delirious state, claims is coming to get him.