Before Netflix’s Making a Murderer set the true crime genre on fire, there was The Staircase from French director Jean-Xavier de Lestrade, which focused on the bizarre death of Kathleen Peterson. Her husband, author Michael Peterson, was accused of the crime, but the docuseries raised significant questions about his guilt. Now, those events are being turned into a limited series starring Colin Firth as Peterson that will adapt the original work by de Lestrade along with “various books and reports on the case,” at least one of which, hopefully, involves killer owls. Harrison Ford was originally attached to the Peterson role, which is a joint venture between Annapurna Television and HBO Max, but maybe one man can only star in so many projects about husbands suspected of killing their wives.