I just finished this one:
Believe in Magic
There were newspaper stories I saw at the weekend about a girl, sadly deceased, who had 'conned' thousands of pounds from people to fund trips to disneyland supposedly as she had a brain tumour, she also ran a charity called "Believe in Magic". However some of the articles went into more detail about how suspicions of Munchausen syndrome (and by Proxy) were suspected, basically it sounded interesting and I saw the link to the podcast.
The podcast goes into a lot of detail, it's very well done and yes the case isn't as clearcut as you might think. Well worth a listen especially if you know of or have been involved in charity for people with terminal illness.