The Escape of R.D.7 is a British television series first broadcast in 1961.

[1] A serial, it was transmitted by the BBC in five episodes.

[2] Virologist Doctor Anna Hastings develops a R.D.7, a virus she believes will wipe out rats.

After her laboratory is closed down after her assistant is injured, she continues her work on a remote location in the marshes of Essex but soon becomes concerned that virus is beginning to spread amongst humans.