Love knows no bounds -- even in space. If You Were the Last follows two sole-surviving astronauts, Adam (Anthony Mackie) and Jane (Zoe Chao), who are stranded on a spaceship. Navigation and communication systems are down. After three years adrift, NASA believes them to be dead. The duo dance, work out, watch movies, and talk to pass the time. Eventually, the dilemma becomes whether they should hook up despite being married to Earthbound partners. Besides verbal teasing and foreplay, Adam and Jane offer varying perspectives. Adam proposes that, since returning home seems unlikely, they should enjoy each other's company to the fullest. On the other hand, Jane argues that they are married and should remain faithful despite the circumstances.
Source:https://www.cbr.com/if-you-were-the-last-kristian-mercado-interview/