Suite Sorrow (S02E12)

When the wealthy and matronly owner (guest star Judith Roberts) of a magnificent hotel is found naked and murdered with injections of Botox in her bathtub, Detectives Goren (Vincent D'Onofrio) and Eames (Kathryn Erbe) focus on the victim's unstable adult daughter (guest star Amy Ryan) who resented her mother's meddling in her love life. While the cops' investigation also snares a makeup artist who dabbles in Botox, they find they need one more missing link to make their case - and subsequently look to the dysfunctional family for more clues. (iTunes)