Gracepoint's David Tennant has a murder to solve, but the new arrival's first case will have a large and complicated suspect pool.

David Tennant Drama To Change 'Very Rapidly' From 'Broadchurch' Story, New 'Gracepoint' Cast PHOTOS

The American reimagining of ITV's Broadchurch will feature Tennant as Detective Emmet Carver, an out-of-towner whose new job takes him to a small California coastal town and pairs him up with Detective Ellie Miller (Anna Gunn). Together, the two must solve the mystery of a young boy's death while the entire town falls suspect.

"Gracepoint is, more than anything else, a whodunit," explained executive producer Dan Futterman in a new featurette. "You learn who everybody is in the town and how they're related to each other. You find out somebody's died and you know, all those people we just met, it's probably one of them that's responsible for this."

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Even Tennant, who played Emmet's Broadchurch counterpart, doesn't know who the killer will be now that the ending is different that the original series. As far as Tennant was aware during filming, it could potentially be anyone - including him.

Honestly, as I sit here, I don't quite know where it's going," Tennant revealed in another Fox featurette.  The ending is going to be different. So, as log as it turns out I didn't do it, I feel quite liberated by not knowing what's coming."

Find out more when Gracepoint comes to Fox on Oct. 2.

Tags: Gracepoint television fox