"Girl in a Bird Cage" is a 1962 episode of Armchair Theatre starring Janet Munro.
Judy Parfitt played a lesbian character which was rare for the time.
A girl is jailed for stabbing the man she loved. She falls under the influence of another prisoner.
"Not a good play", wrote The Observer. "More of a dramatic documentary than anything and as such was spoiled by melodrama and coincidence. But it was very capably produced and very nicely acted. I couldn't take my eyes off."