Stuart is a having a mid-life crisis. Desperate for something more in life, he tags along on his best friend's family vacation to Paris - then proposes to his friend's 26-year-old daughter, Rosalind, while standing under the Eiffel Tower.
Alex, Emily, and their son, RJ, are new to Los Angeles. A chance meeting at the park introduces them to the mysterious Kurt, Charlotte, and Max. A family "playdate" becomes increasingly interesting as the night goes on.