Season 5
Alan (Derek Jacobi) and Celia (Anne Reid) are seven years into their marriage and, having moved into a desirable bungalow with stunning views across the Calder Valley, they aren't seeing eye to eye.
Celia is baffled when Alan applies for a job in a local supermarket, and Alan can't understand why they need an expensive new kitchen.
Alan's brother, Ted, has booked a last-minute trip from New Zealand, which means more spending to kit out the spare bedroom, and Gillian, already stretched with bank repayments, discovers she has woodworm nibbling at her roof timbers.
Having transformed her difficult new school with phenomenal success, a guest appearance by megastar author Judith Tyzack threatens to bring a fresh challenge to Caroline's headship.
A phone call from New Zealand gives Alan and Celia pause for thought, and tempers get frayed at Caroline and Gillian's joint birthday celebration when money becomes the topic of conversation.
Meanwhile, Judith presents John with an awkward proposition.
Last Tango in Halifax is written by Sally Wainwright, directed by Gareth Bryn, and produced by Ken Horn.
The four-part series also features Timothy West, Josh Bolt, Dean Smith, Louis Greatorex, Paul Copley, Katherine Rose Morley, Felix Johnson, Rachel Leskovac and Liam McCheyne.
Executive producers are Faith Penhale and Laura Lankester for Lookout Point, Ben Irving for the BBC, and Sally Wainwright.