Does this sound familiar to anyone?

[diddl]

And if so, what was it called?

May have been a one off 2/3 part thing, or part of an established series, although think more likely the former, but really can't remember.

IIrc, a young couple go away & leave their kids-including a baby I think with a nanny. It's a big house & she invites others to stay.

When the couple get back, everyone is dead.

Can't remember anyone who was in it at all to look up on Imdb.

It was called Half Broken Things, with Daniel Mays and Penelope Wilton.
It was a one off drama on BBC, I think , and from a book by Morag Joss.
Haunting drama, very Ruth Rendell style I thought

OMG you are amazing!

Thank you!

How I didn't remember that the marvellous PW was in it I don't know!

You are welcome, I remember it because Daniel Mays is such a brilliant actor in everything he is in.

Never heard of it but it sounds great!