Description: Neuroscientist Julia's (Whitney Cummings) research into the biochemistry of the female brain is illustrated by three couples: newlyweds Zoe (Cecily Strong) and Greg (Blake Griffin), whose career troubles seep into their relationship; Lisa (Sofia Vergara) and Steven (Deon Cole), who are looking to spice up their stuck-in-a-rut marriage; and Lexi (Lucy Punch) who can't help trying to change her boyfriend Adam (James Marsden). Meanwhile, straight-laced Julia's own synapses start to fire when a handsome new subject (Toby Kebbell) joins her study.