In a woodland area near Birchover, Derbyshire.
No interactions present.
I'm going with cicuta 58 and saying the berries are Ivy Hedera helix. The berries are poisonous whereas the bilberry berries are not.
Don't take my word for it though. Don't eat any!
Lat/Lng: 53.1572, -1.6425
OS grid ref: SK240622
Birchover Woodland, Derbyshire.