Adam and Jennifer portray the married couple, and often ad-lib their way through their lines cause of their on-screen chemistry - meaning their other castmates are left scrambling to try and keep up.
"We go off script a lot," the actress confessed on U.S. daytime show "The Talk". "It's a lot of improv, and I'm sure it must be challenging for the other actors in the scene, because they're just like, 'Uh, my cue's gone! Where's my cue? I don't know what to say!'."
"But yeah, we just goof around; it's quite fun."
"Murder Mystery", which also stars Luke Evans, debuted on streaming service Netflix on Friday, June 14.