1944. A German submarine is spotted in Tralee Bay on the West coast of Ireland.
Next morning the body of a young man with fatal head injuries is found in the river. He’s wearing a distinctive silver ring.
Garda Eamon Foley traces the ring to Paudy Daly, who has been missing for over nine months.
But Paudy’s father, the notorious Mixer Daly, is furious when he sees the body. Because it is not his son.
Garda Foley discovers that the body is that of a Polish seaman. So where did he get Paudy’s ring?
Then Garda Foley learns that the last time Paudy was seen alive, he was on his way to rob a pig-breeder’s house.