I didn't get into thes episode at all. Listened to it, backed it up several times, managed to get through it to the end, but there didn't seem to be much to hang on to.

Something about Ireland, a bell that only those with the 'kiss of death' can hear, a lost castle, direct lineage to the castle's inhabitants, local suspicion about the castle and the old beautiful woman that lived there, a man in the present feels drawn to the castle, another woman in the present hyper-sensitive to superstition...