SUNNY WHODUNIT The Madame Blanc Mysteries, 9pm, Ch5

SALLY LINDSAY’S antiques-loving amateur sleuth Jean White finds herself in heaven at a beautiful country house that is positively brimming with treasures. Newly acquired by Jeremy and Judith, the property becomes a murder scene when the previous owner is found dead in the kitchen, clutching a key. Chief of police Caron (Alex Gaumond, pictured) asks Jean to help him to find what it is that the key unlocks . . .