Fast Fashion and Flaneurs

Bill Wonder the tyrannical billionaire fashion tycoon is found splattered on the pavement outside his fashion school in the West End of London.
Was he pushed from the balcony, did he jump, or it could have happened because of his high heel shoes?
The mystery of his death is stitched together by Sadie Silver, a hapless fashion history teacher, who needs to understand the incident to uncover her family's sartorial secrets.
But wait, could she have killed Bill?
After all, she was the last person to see Bill alive, and he really seemed to hate her new look.