Your Sudden Death Question

S4 E3: Over the August Bank Holiday an empty Oxford college plays host to a weekend for professional quizzers. After a boozy first night, Lewis and Hathaway are called back from their bank holiday pursuits when the standout competitor Ethan Croft is found floating dead in the college fountain. Lewis quickly learns that Croft was an outrageous flirt with a number of secrets, whilst Hathaway discovers that Lewis had been planning a romantic weekend at Glyndebourne with a mystery date... Lewis and Hathaway race to uncover the killer before the weekend is over and the quizzers are free to return home.