Monica has got her claws into Frank, but dare he tell Sheila he's slept with his ex? Sheila proves to be a frightening adversary when scorned: Frank could be in real danger. And when Sheila finds a spade and a freshly dug patch in her garden, she fears the worst... There's a new copper on the estate, but Carrie isn't as nice as she looks. She's slightly unhinged and out to get Carl. Lip tells Paddy Maguire he won't work for him, no matter how skint he is, but his new business is threatened when he discovers something nasty. It couldn't have anything to do with the Maguires, could it?