Fairy? Butterfly? Angel?

Found beside a woodland path at the back of a local park.

This common plant probably goes unnoticed by most people as its flowers are so small, but pause and crouch down and you cannot fail to be impressed by their delicate beauty.  With two sepals, two petals, two stamens and a single stigma/style; the flowers look rather insect-like or may be likened to a fairy.

This is enchanter's nightshade, Circaea lutetiana.