Click to viewThe biggest question mark hanging over Joss Whedon's challenging new show Dollhouse is how do you explain its premise (about mindwiped puppets for hire) to casual viewers? Take Lost: it's a show about a plane crash that strands people on an island. The show becomes way more complex, but it started fairly simple. Luckily, this new trailer, just released by Fox, goes a long way towards distilling Dollhouse into an easy-to-digest concept. The key is probably that it mentions the word "soul."