Supernatural (TV series)/Recap/S01/E19 Provenance

Season 1, Episode 19:

Provenance
A young couple dies after purchasing a painting of a family who died violently. Dean and Sam investigate, with the help of Sarah, an antiques dealer's daughter.

Tropes

 * Creepy Changing Painting
 * Enfante Terrible
 * It's Not You, It's My Enemies: Sam tells Sarah that they can't be together, which is wise since everyone he sleeps with dies.
 * Phantom Zone Picture
 * Shipper on Deck: Dean for Sam/Sarah
 * Spooky Painting
 * You Need to Get Laid