‘Fleabag’

When to watch: Starting Friday, on Amazon.

One of TV’s best and most interesting shows, “Fleabag,” started as a one-woman stage show, and now that theatrical production is available to download for $5, with proceeds benefiting British charities. There are a lot of differences between the stage show and the TV series; much of the plot here is similar to the first season’s, but the vibe is a little different, and the stage version is more specifically focused on sex. What is not different at all is how layered and compelling Phoebe Waller-Bridge is as a performer and writer, tapping into a volatility and vulnerability that are always in conflict but rarely in the ways you would expect.