The woman who says she's the Martha from "Baby Reindeer" — which Netflix bills as a "true story" — gets cornered by Piers Morgan.

I'm jumping to a point 34 minutes in where Morgan questions Fiona Harvey about the tens of thousands of emails the writer Richard Gadd says she sent to him. Harvey, a lawyer, is threatening to sue, and she knows that if the emails were sent they will be produced in that lawsuit. "These are easily provable things," Morgan says. "He's either got them or he hasn't." Watch the dramatics and tell me if you think she's credible. Either she or Gadd is lying.

Yes, Gadd is an artist, and he should be able to use his own life as source material and to process it into an interesting show, but he has stated that the story is true and the show, which is very successful, is promoted as a true story. Gadd has asserted that he has changed things to protect the privacy of real people, most notably "Martha," a vivid and fascinating stalker, but Martha was easily identified as Fiona Harvey. Direct quotes used in the show appeared in Harvey's social media.

The obvious complexity is that Harvey is saying both that she is and she isn't Martha. You have to first identify her as the character before you can accuse Gadd of lying about her. If you watch the clip, you'll see how difficult her position is. But maybe she's a liar and a stalker. If not, what is she? Should she be on TV explaining herself, cornered and (to my eye) terrified? If she is Martha — and if Gadd's presentation is true — she has serious mental problems.