Joan Allen has a new co-star in A Good Marriage. Kristen Connolly has joined the cast of the adaptation of the 2010 Stephen King novella. Currently reprising her role as congressional aide Christina Gallagher in the now-filming second season of Netflix’s political drama House Of Cards, Connolly will play Allen’s daughter Petra in A Good Marriage. King wrote the screenplay based on his tale of a woman (Allen) who discovers her rare-coin-selling husband is a serial killer. Documentarian Peter Askin is directing the feature, which will shoot in New York state. Askin is producing with his Reno Productions partner Will Battersby. Connolly, who also starred in the Joss Whedon-produced The Cabin In The Woods last year, is repped by Paradigm and Untitled.