It’s time to dust off the duffle coat as Alan Davies and Sheridan Smith return to star in a brand new Jonathan Creek mystery, involving secret societies, seeming supernatural events at a girls’ boarding school and the miraculous disappearance of a body in front of several witnesses. But as Creek and Joey soon discover, there is more to this case than a mere locked-room mystery – what is the link with the baffling red rings which appeared on the foreheads of convent schoolgirls in the 1960’s, and the horrifying, ghostly death of a student? And what could explain the repeated appearance of St Barnabas himself to the girls? Something supernatural is hiding in the old convent school grounds, but Creek has an inkling that not all is as it seems. Using his powers of deduction and lateral thinking, Creek races against time to uncover a number of intriguing clues which lead him to the unbelievable truth. Can he once again render the impossible, possible?