El monasterio de la muerte (1974)

Original title: Judge Dee and the Monastery Murders

China, 7th century. On their way to a provincial center Judge Dee and his three wives spend the night at a Taoist monastery. Soon the judge discovers that the secluded place holds a secret - the former abbot died of unnatural causes. After a number of mysterious events and more cases of murder Dee tracks down the true villain.