Book superstore magnate, Joe Fox and independent book shop owner, Kathleen Kelly fall in love in the anonymity of the Internet—both blissfully unaware that he's trying to put her out of business.

Two employees at a gift shop can barely stand one another, without realising that they are falling in love through the post as each other's anonymous pen pal.

Two co-workers in a music shop dislike one another during business hours but unwittingly carry on an anonymous romance through the mail.

BBC production of the 1963 Broadway musical which was based on Ernst Lubitsch's 1940 film "The Shop Around The Corner."

Amalia and Georg work together at a modest Hungarian perfumerie, and have disliked each other from the very beginning. He thinks she's stuck up, and she thinks he's arrogant and mean. But each rapturously writes to a lonely hearts pen pal when the workday is done, and it doesn't take long for the audience to see that they're in love without realizing it. Originally live-streamed by BroadwayHD, then broadcast as an episode of the PBS series "Great Performances" (season 45, episode 3).