[s5e12] The Uncanny Valley -

When her father gave away her original doll collection, Samantha's fragile psyche snapped, leading her to "replace" them with human surrogates. Key Moments and Themes

Dr. Spencer Reid plays a pivotal role, using a gentle, empathetic approach to talk Samantha down without handcuffs at the end. He eventually returns her original dolls to her, which immediately makes her docile. [S5E12] The Uncanny Valley

The title refers to the psychological theory that human-like figures (like dolls or robots) become increasingly unsettling as they look more, but not perfectly, human. When her father gave away her original doll