The neurological inner workings of romantic relationships between men and women are studied for science.
Whitney Cummings
as Julia
Toby Kebbell
as Kevin
Beanie Feldstein
as Abby
Cecily Strong
as Zoe
SofĂa Vergara
as Lisa
Deon Cole
as Steven
Blake Griffin
as Greg
Lucy Punch
as Lexi
James Marsden
as Adam
Neal Brennan
as Marco
Jaylin Fletcher
as Ty
Adam Shapiro
as Hank