Sevigny's character has a kind of thwarted girl detective vibe to her -- she has an amusing scene in which she tries to stroll surreptitiously through the store to the back to look up Liz's number in the records only to immediately be called out and scolded by her boss. And her eagerness on helping Louie track down Liz builds from quirky to crazy over their afternoon together, as she insists on going with him to the building in which he dropped Liz off at the end of their date, and then utterly fails to sweet-talk her way inside to find a woman she's never met.
Louie's non-date with Sevigny's character (does she ever get a name?) serves as an unenchanted counterpoint to his magic, unsettling night out with Liz -- she even meets him outside when she gets off, but all in the harsh light of day. Like Posey's character, this new girl is willing and able to push Louie into situations he wouldn't normally allow himself, but nothing goes right here, from their unsuccessful search for Liz to Sevigny's apparently getting so excited by the adventure that she masturbates out in the open in a coffee shop while a mortified Louie tries to keep her quiet.
If there's any common theme in this mixed bag of an episode, it's how mysterious women are to Louie and, quite probably, to C.K. in many ways as well. The bewildering encounter of the first half is matched against a similarly off-balance drama with his own daughter Lilly (Hadley Delany) in the second, as he finds her getting taunted by some classmates, is unable to cheer her up and then thinks she's run away. While the younger Jane (Ursula Parker) is still a sweet, malleable child, puberty's on the horizon for the ten-year-old Lilly, and she's starting to show flickers of moodiness, secret-keeping and other adolescent qualities. The female gender, in the show, is an often incomprehensible thing to the main character (a quality that's usually reflected back as his own failing), and this saga of thinking Lilly's gone missing starts to seem like it's representing less a parenting fear about keeping one's kids safe and more a terror of teenagerdom to come, of both of Louie's daughters eventually becoming grown women he may not understand.