"Safe House" is the sixteenth episode of the paranormal drama television series Supernatural's season 11, and the 234th overall.
A woman, Naoki Himura, is scraping old wallpaper in her new house when she hears a scream and runs up to her daughter's bedroom.
After getting no information on Castiel or Amara, Sam and Dean decide to take up the case of a little girl who went into coma and the only sign of any trauma is a handprint on her ankle.
In the present, the Winchesters realize that Naoki broke Bobby and Rufus' sigil while redecorating and accidentally released the soul eater.
Rufus manages to subdue the possessed Bobby and finish the sigil, trapping the soul eater and sealing its nest.
In the present, as Sam works on his own sigil, Dean purposefully goads the soul eater into dragging him into its nest where he meets Kat.
Watching the souls disappear, Dean and Bobby briefly encounter each other before being returned to their own bodies in their respective time periods.
In the past, Bobby puts up wallpaper to cover the trap sigil while Rufus check on the family to discover that they are now okay.
In the present, the Winchesters find that Naoki and Kat are awake as well while Dean speculates on whether or not he actually saw Bobby in the nest, a place that exists outside of time and space, making it theoretically possible.
"Safe House" featured some genuinely funny moments, a welcome reappearance of two of Supernatural's most dearly departed elder statesmen, and some really swell directorial decisions with those seamless parallels and throwbacks.
""[5] Sean McKenna of "TV Fanatic" wrote, "This was an enjoyable hour, especially because of Rufus and Bobby, but it was the mix of past and present cases while incorporating the parallels (with some excellent editing) that made it far more than just a typical one-off episode.