Everyone felt VERY awkward watching that Witness for the Prosecution sex scene with their relatives

Viewers of the first of the two-part adaptation of Agatha Christie's classic play The Witness for the Prosecution spat out their collective turkey sandwiches.

And it wasn’t because of the gruesome killings or a blood-lapping cat. No, viewers tuning in for a festive murder mystery had to avert their gran’s eyes during a sex scene with a very coughy Toby Jones.

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Yes, the Great British public can handle a good old-fashioned skull-splitting homicide on Boxing Day, but a line has been crossed if we’re forced to watch a bit of hanky panky on the box with the in-laws.

Errr.. . Did Agatha Christie write that bit? (rough, unconsenting, coughing sex) #witnessfortheprosecution ?

— Caitlin (@grimbletweets) December 26, 2016

Well, you were warned, guys…

Watching new Agatha Christie, announcer says "may contain scenes of a sexual nature" and whole family freezes #witnessfortheprosecution

— Surrie (@littlebrightone) December 26, 2016

Better make sure you polish off your remaining mince pies before the final episode. And maybe take Gran to another room...