A particularly puzzling pyjama pic

[ptdrifter]

I have a photo of a photo of a photo, and absolutely no idea where the original came from.
I only have this copy so no clues on the back or type of paper etc etc.
I would appreciate any suggestions as to age of the photo and of the subjects and why they appear to be wearing pyjamas! Fancy dress ?
All replies welcome

[Zefiro]

Clothing reminds me of the uniform prisoners wore in concentration camps.
https://auschwitz.net/coleccion/prisoner-uniforms/

Maybe these 2 performed on stage?

[Wiggy]

Clothing reminds me of the uniform prisoners wore in concentration camps.
https://auschwitz.net/coleccion/prisoner-uniforms/

Maybe these 2 performed on stage?

My immediate thought too.   

[ShaunJ]

Clothing reminds me of the uniform prisoners wore in concentration camps

Not with those boots

[Neale1961]

Given the shoes they are wearing, and the fake-floral "thing-o" on their collars, I would say they are wearing theatrical costume.

[masmarn]

Clothing reminds me of the uniform prisoners wore in concentration camps

Not with those boots

Or the cigarette in her right hand.

[Wiggy]

True, everything else is wrong . . but the pyjamas still remind me of concentration camp 'clobber'.   

Theatrical sounds good.

[ptdrifter]

Thanks for the replies, interesting suggestions. Maybe theatrical of some kind.

[Mike in Cumbria]

Pyjama party