Alice and Dan meet and fall easily in love. Intimacy comes effortlessly, and they decide that she should move into his small London flat. They create a fun and energetic life together. Alice, an artist, begins a project of documenting their relationship with a video camera. At first this offers her a feeling of connection to the outside world, but soon takes on a more sinister life and interferes with their interactions. Alice feels trapped but does not know why or how to fix it. Cracks appear, unbeknownst to them. Self-destruction plays a role. Before they know it, Alice has cheated on Dan. Dan responds by cheating back. They find themselves in unfamiliar territory and do not know how to proceed. They love each other but can’t seem to get along well enough to stay together. Exhaustingly, they decide that she will move back to the States. Back home, Alice has great success with work, but something is missing... is it Dan? They still feel a very deep connection and believe that they made a mistake in breaking up. They want to try again, feeling that they have learned from their mistakes. They make plans for Dan to fly to LA to see Alice. A plus D is a universal story of relationships. Two people who are potentially perfect for each other, and indeed do fall in love, but unwittingly self-destruct and fall into their own insecurities. In equal measure, they create and destroy their own intimacy. As we are all evil and good, so are they to each other.

A plus D was shot in London and Los Angeles. Two very different video cameras were used to differentiate between the sets of footage and help establish varying levels of intimacy. Prior to shooting, the actors rehearsed intensively to become very familiar with each other and the subject matter, beginning by spending one whole day indoors together in just their underwear. Principal photography began in July of 2005 when the cast and two-person crew holed themselves up in a small flat in northeast London for three weeks straight, barely remembering to take time for meals. Additional photography took place in Los Angeles throughout 2007. Post-production was (sort-of) completed in August of 2009.