Trish is a lonely young wife in a tense marriage, living at the top of a high rise block of flats. She looks to the police and her husband for help when she finds her baby has been stolen from its pram.
The film by Brakhage commonly referred to as "Wecht" does indeed exist. It doesn't have a titlecard at the head, and the leader of the original is labeled "Portrait" in Stan's handwriting, so I'm not sure where the 'Wecht' title comes from.
Jack White throws a big party at which many of the artists he has produced perform. He has had an eventful life in which he has always remained true to his ideals, first as a footballer, then as a pop singer and then as a producer, even in the face of fierce opposition from others.
Delia Peletier has been paid to have a child for a wealthy man who wants an heir. She has the baby and turns it over to her "employer," but subsequently decides she wants the child back.