ITV's murder mystery The Sister leaves viewers too scared to sleep

ITV's four-part thriller follows Nathan (played by Russell Tovey), who's spent years trying to atone for a terrible mistake in his past, involving the death of his wife's sister, Elsie. https://www.dailymail.co.uk/femail/article-8880993/ITVs-murder-mystery-Sister-leaves-viewers-scared-sleep.html?ns_mchannel=rss&ns_campaign=1490&ito=1490