“Outlander” star Sam Heughan leads the steamy thriller Sam Heughan "The Couple Next Door" (Starz) “Outlander” may be signing off for Season 7, but Starz is prepped and ready to deliver more Sam Heughan in the steamy polyamory thriller, “The Couple Next Door.” The series aired in the U.K. last November, and now its finally available to watch in the U.S. and Canada. Heughan stars as “alpha traffic cop” Danny, who’s in an open marriage with glam yoga instructor Becka (Jessica De Gouw, “Pennyworth”)