“Unfamiliar,” Netflix ’s action-packed yet unconventional spy series that follows a married couple and former intelligence operators who are suddenly forced to deal with a deadly menace from their past, shot to the top spot globally among the streamer’s non-English shows in its first week of release. Launched on Feb. 5, the Gaumont Germany production centers on former top agents Meret (Susanne Wolff) and Simon (Felix Kramer), who run a secret safe house in Berlin. When a long-buried threat