Christmas in Champton, and Daniel and Neil Vanloo are reluctantly conscripted into the Cathedral's choir. The town is buzzing with preparations, festive merriment prevails, and the concert goes without a hitch. That is, until a warbling soloist steps forward: and falls to his death before he can finish the note. And Daniel suspects it wasn't a fall, but a push. Can Daniel, Neil - and Daniel's delighted mother, Audrey - solve the mystery and catch the Christmas killer?