Kellie Martin is colonising the late movie slot on four of the terrestrial channels. If a movie in this slot has a one word title, it has ideas above its station. Two, it is a thriller, possibly erotic. Three, a TV Movie. Four, a TV Movie based on a true story. Kellie Martin (ER) stars predominantly in the three or four word fare - Her Hidden Truth, Hidden In Silence, If Someone Had Known - and a classic six - The Face On The Milk Carton. It is mystifying that the TV Movies which deal with the disappearance of children are as popular as the deaths (often by drowning) of children in the London free paper Metro.