Criminal Minds First Look: "Surface Tension"

When a bizarre hieroglyph found under a deceased homeless man's armpit is the same from previous casualties a few years ago, the BAU is called in to investigate. Also, Reid decides to take his mother out of a clinical study early to bring her home with him, in "Surface Tension."

Matthew Gray Gubler is all smiles while filming this Reid-centric episode.

Matthew Gray Gubler is all smiles while filming this Reid-centric episode.

When a bizarre hieroglyph found under a deceased homeless man's armpit is the same from previous casualties a few years ago, the BAU is called in to investigate. Also, Reid decides to take his mother out of a clinical study early to bring her home with him in "Surface Tension" on Wednesday, Feb. 1 at 9/8c on CBS and CBS All Access.

Enjoy these behind-the-scenes photos from the filming of the episode...

Watch Criminal Minds on Wednesdays at 9/8c on CBS and CBS All Access.
Get another perspective on a scene with Matthew Gray Gubler and Jane Lynch.

Get another perspective on a scene with Matthew Gray Gubler and Jane Lynch.

"Surface Tension" (Episode 11, Season 12 of Criminal Minds)
Paget Brewster has a point to make behind the scenes of

Paget Brewster has a point to make behind the scenes of "Surface Tension."

"Surface Tension" (Episode 11, Season 12 of Criminal Minds)
Matthew Gray Gubler, Paget Brewster, and Damon Gupton strike a pose on set.

Matthew Gray Gubler, Paget Brewster, and Damon Gupton strike a pose on set.

"Surface Tension" (Episode 11, Season 12 of Criminal Minds)
Matthew Gray Gubler and Damon Gupton mug for a quick photo between takes.

Matthew Gray Gubler and Damon Gupton mug for a quick photo between takes.

"Surface Tension" (Episode 11, Season 12 of Criminal Minds)
Damon Gupton prepares for filming at the BAU.

Damon Gupton prepares for filming at the BAU.

"Surface Tension" (Episode 11, Season 12 of Criminal Minds)
Diana Reid panics in Spencer's apartment.

Diana Reid panics in Spencer's apartment.

... and now some images of the episode itself, "Surface Tension" (Episode 11, Season 12 of Criminal Minds).
Reid attempts to jog Diana's memory with her old scrapbook.

Reid attempts to jog Diana's memory with her old scrapbook.

"Surface Tension" (Episode 11, Season 12 of Criminal Minds)
Reid attempts to calm his mother.

Reid attempts to calm his mother.

"Surface Tension" (Episode 11, Season 12 of Criminal Minds)
Diana clutches a scrapbook.

Diana clutches a scrapbook.

"Surface Tension" (Episode 11, Season 12 of Criminal Minds)
Dr. Reid is deep in thought.

Dr. Reid is deep in thought.

"Surface Tension" (Episode 11, Season 12 of Criminal Minds)