The MHU are sent to Edinburgh to investigate the death of a recently released prisoner whose body is pulled out of the Forth River, imprisoned in a dog cage.

The peaceful existence of three eccentric, secluded nuns living in a remote island monastery is shattered when a priest unwittingly happens upon them.

As a memorial is held for Ignatius on the mainland, Father Bob arrives on the island to annihilate the Sisters of St. Agnes. Iphigenia’s loyalty is tested when she considers…