There's always plenty of Stephen King adaptations in the works, but here's one based on a story you might not be as familiar with -- and as a bonus, King himself wrote the screenplay. 'A Good Marriage' appears to examine a marriage through King's grisly lens, and the suburbs are looking pretty deadly.

'A Good Marriage' stars Joan Allen as a woman who discovers that her husband of 25 years isn't quite who she thought he was -- turns out, he's a serial killer, and he's been gleefully murdering women for decades. The trailer seems to deliver some standard suburban thriller fare, but given that this is based on a Stephen King novel and boasts a likable cast, we're willing to give it the benefit of the doubt.

King wrote the screenplay for the film based on his own short story, as he did with 'Cat's Eye,' 'Pet Sematary,' and the miniseries versions of 'The Stand' and 'The Shining.' He also wrote the screenplay for the upcoming adaptation of his novel 'Cell.'

'A Good Marriage' also stars Anthony LaPaglia as the killer husband, Kristen Connolly from 'The Cabin in the Woods' and 'House of Cards,' and Stephen Lang. The film was directed by Peter Askin ('Company Man') and hits theaters on October 3.

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