Trying to find out about a BBC Drama...

can you put me out of my misery ..... on the 30th December I was watching a documentary on Maggie Thatcher and then one on Orson Wells (not by choice I was nursing my 3 day old grandson. I saw an advert I think it was BBC 4 for a new drama - there was a huge statue of a dragon - the eyes turned red and it flew off and as it flew all the cash machines seemed to empty themselves. Now am I going mad or did this really happen? It gave the name it was two words. And for the life of me I cannot remember what the name of it was. All I know it was coming soon. Can you help me.
Yvonne ...ylb@culla.co.uk