年青考古学家安格斯。在女朋友玛莉住的美斯农场附近，发掘了一个类似蛇的头骨，没多久，玛莉的父母失了踪，而住在村里的神秘女士西维亚，又从外面回来，她是蛇妖的化身，捉了玛莉的妹妹依芙，准备将她奉献给蛇妖。举行奉献仪式时，安格斯及时赶到，与蛇妖展开了一场决斗。Scottish archaelogist Angus Flint discovers an odd skull amid the ruins of a convent which he is excavating. Shortly thereafter, Lady Sylvia Marsh returns to Temple House, a nearby mansion, far earlier than expected. At a party in the village, Angus mee...
