This is a 1960 horror film directed by Sidney Hayers, and stars includes Anton Diffring, Erika Remberg, Yvonne Monlaur and Donald Pleasance.
A plastic surgeon Dr Rossiter, is on the run from police with two accomplices, a brother and sister who end up hiding in a shabby part of town with a small circus. It's run by a poor man with his child whose face is scarred, then the doctor treats her with facial beauty and becomes happy. Later the circus transforms into a popular show with glamour and full of beautiful looking people, whose lives were turned around by Dr Rossiter. However it's got a sinister reputation and the police investigate why there are so many deaths.
This is a glitzy circus with some magic and beauty, although underneath it all, not really. The circus travels across Europe getting a bad reputation. This was filmed at Billy Smart's circus, a very popular travelling fairground in the early to mid 20th century. The same circus was also used in the 1967 horror film "Bersek". This film contains some violent gruesome scenes.
Rating this 7/10 for madness. Spoiler below!
Blood Strawberry
Spoiler: Not only can the doctor make beautiful faces but he can also somehow transform ordinary people into terrific acrobats as well.