Mystery! on PBS

“Second Sight: Parasomnia” (Part 1 of two). A well-to-do young woman (Josephine Butler) wakes up wearing a blood-soaked nightgown just after her fiancé is found murdered. She's also captured on her building's security video leaving the building and returning (wearing the nightgown). However, she has a history of sleep disorders, and she had no reason to kill him. Meanwhile, the police training department is requiring everyone (Tanner included, of course) to take a “firearms refresher.” Tanner: Clive Owen. Lord Roddam: Michael Kitchen.