(This article is about a play. For the animal, see Grass Snake. For the mythological figure, see Serpent (Bible).) Snake in the Grass is a 2002 play by British playwright Alan Ayckbourn. The play is about a middle-aged older sister who returns to the family home where her younger sister still lives, shortly after their abusive father's death. It was written as a female companion piece to the 1994 ghost play Haunting Julia, and in 2008 these two plays, together with new play Life and Beth were folded into a trilogy named Things That Go Bump.