Clamb (Tom Georgeson) discovers Tulkinghorn’s (Charles Dance) body. Bucket (Alun Armstrong) begins investigating the case. He quickly learns from Clamb that George was spotted at the scene of the crime and had previously issued violent threats against Tulkinghorn. It’s only circumstantial evidence so far, but it’s damning nonetheless. And while Sir Leicester (Timothy West) offers a reward for the arrest of the murderer, Lady Dedlock (Gillian Anderson) is keeping quiet.Phil (Michael Smiley) wants to know where Sergeant George (Hugo Speer) got to the night before with the pistol. But they’re interrupted by the arrival of Smallweed (Phil Davis), who’s come to do an inventory of all George’s goods. He leaves in a hurry when George raises a pistol at him. But Smallweed gets his own back by fingering George as a potential suspect to Bucket. He also demands the return of the Hawdon letters he sold to Tulkinghorn, but Bucket’s having none of it.Meanwhile, Caddy (Natalie Press) has had her baby, but both mother and child are very ill. Esther (Anna Maxwell Martin) and Ada (Carey Mulligan) visit her and dismiss the quack doctor employed by Old Mr Turveydrop (Matthew Kelly). They send for Allan Woodcourt (Richard Harrington) instead, who quickly improves Caddy’s condition. It’s more than evident that the flame still burns between him and Esther. However, she firmly attempts to hold her feelings in check.Later, at Ada’s 21st birthday party, Richard makes a rare visit to his guardian’s house but finds it very difficult to conceal his hostility. When Ada remarks to Esther of Woodcourt’s evident feelings for her, Esther owns up to her engagement to Jarndyce (Denis Lawson). Ada’s shocked to have been excluded from the secret.Meanwhile, in the middle of Phil’s birthday celebrations, Bucket arrests Sergeant George. It appears that he’s wrapped up the Tulkinghorn murder case quickly. But a spate of poison-pen letters which suggest that all’s not as it seems and that Lady Dedlock is a ‘murderess’.