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.
