After a baffling marketing campaign, I decided I HAD to see The Substance - I went into it nearly blind but was absolutely delighted to find myself in the body horror film of the century. At every time I had thought the film reached its peak absurdity I was pleasantly surprised to be hit with more. The last 30 minutes alone had me giggling like a little girl. Pierre Olivier Persin I hope your pillow is always cold and they…