If you are referring to the concluding chapter of Ibsen's play (often studied in three parts), the story reaches its climax here.
The search for "[S1E3] The Dollhouse " reveals two primary television episodes with this title or designation, as well as a connection to the classic play A Doll's House . Here are the story details for the most likely matches: [S1E3] The Dollhouse
Taissa’s past begins to bleed into her political campaign. We see her childhood trauma—specifically a terrifying experience with her dying grandmother—which seems to be the root of her current sleepwalking and psychological distress. Meanwhile, it is revealed that Jessica Roberts, the "reporter" harassing the survivors, is actually working for Taissa to test their loyalty. 2. Dollhouse (S1E3) – " Stage Fright " If you are referring to the concluding chapter
Echo is imprinted as "Jordan," a backup singer and bodyguard for a high-profile pop star, Rayna Russell, who is being targeted by a lethal stalker. Dollhouse (S1E3) – " Stage Fright " Echo
Agent Ballard’s investigation into the Dollhouse hits a wall when his contact, Lubov, is revealed to be a "sleeper" Active for the Dollhouse, leading Ballard into a trap. 3. A Doll's House (Act 3) – Henrik Ibsen
While not titled "The Dollhouse," this is the third episode of Joss Whedon's series Dollhouse .