Dollhouse - Season 2 Episode 10 The Attic She can be anyone, except herself.
Overview: When Adelle, Boyd, and the rest of the Dollhouse fear that Echo's uncontrollable mind imprints are making her a danger to their goals, they send her to "the Attic" where Echo is forced to face her worst nightmare in order to survive.
Comment
Dollhouse is an odd show, it took a few episodes to establish where it was going and once it did cancellation was just around the corner at the end of its second season. So, is it good? Yes, yes it is, the concept of blank slate people implanted with personalities is science fiction gold and is used in a few interesting ways by the writing staff, also the characters are well developed and as an audience they are easy to emotionally invest in. The ending is a bit of a mess but its still worth watching. Also "Epitaph: one" is a 10/10 episode of science fiction.