Absorbing murder story with more emphasis on characterization than action makes this an above-average entry. Dan August and his hard-working associates have to probe deeply into the motivation of a former priest (Bradford Dillman) for evading their questions, when they try to crack a series of icepick murders. Since we know who the murderer is from the start, the interest of the tale lies in watching Dan break the priest's resistance.
A religion is a belief system with rituals. The missionary kopimistsamfundet is a religious group centered in Sweden who believe that copying and the sharing of information is the best and most beautiful that is. To have your information copied is a token of appreciation, that someone think you have done something good.