Monica Vitti

A woman disappears during a Mediterranean boating trip. During the search, her lover and her best friend become attracted to each other.

In an industrial area, unstable Giuliana attempts to cope with life by starting an affair with a co-worker at the plant her husband manages.

Modesty Blaise, a secret agent whose hair color, hair style, and mod clothing change at a snap of her fingers is being used by the British government as a decoy in an effort to thwart a diamond heist. She is being set up by the feds but is wise to the plot and calls in sidekick Willie Garvin and a few other friends to outsmart them. Meanwhile, at his island hideaway, Gabriel, the diamond thief has his own plans for Blaise and Garvin.