Coronation Street's most SHOCKING betrayal YET sees THIS legendary couple torn apart next year?

Secrets and lies are set to threaten Coronation Street couple Steve and Tracy McDonald in 2020...

Next Year's Coronation Street will see drama hit Steve and Tracy McDonald's marriage as a cheating scandal threatens to tear them apart.

The drama starts on New Year's Eve, when Tracy fails to get the attention she deserves from her husband, leading to her drowning her sorrows in The Rovers without him.

Coronation Street spoilers: Tracy Barlow cheats on Steve! — Tracy is set to cheat on Steve on New Year's Eve (Picture: ITV)

However, things are set to take a shocking twist when she wakes the next morning on New Year's Day only to find she is naked in a strange bed.

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As the horrifying realisation that she has cheated on Steve dawns on her, she dashes home to her family, hoping that no one will work out what has happened... but sadly for Tracy, her daughter Amy soon realises something is amiss.

Coronation Street spoilers: Can Amy Barlow force Tracy to tell Steve the truth? — Amy isn't happy when she finds out what her mum has been up to (Picture: ITV)

After spotting a stranger's coat in their house, Amy realises that Tracy has done the dirty on Steve and tells her mum that is she doesn't confess then she will tell Steve everything.

But somehow Tracy manages to keep her night of passion a secret until well into the new year, when it is actually her one-time love rival Leanne Battersby who discovers the truth and lets the cat out of the bag.

When Leanne overhears Tracy confronting her one night stand, Tracy is horrified that the secret is out and knows it is only a matter of time before Steve learns the truth...

Coronation Street spoilers: Will Leanne Battersby reveal Tracy’s secret? — Leanne discovers Tracy has cheated, and she struggles to keep the news to herself (Picture: ITV)

And she is right to be worried because as Sally Metcalfe hosts a hot tub party things turn seriously awkward when both Tracy's husband and her fling are invited... leaving Leanne thrilled at the drama.

Leanne devilishly goads Tracy, enjoying every moment of seeing her squirm, and soon Steve is clocking the tension and demanding Tracy tells him what is going on.

Coronation Street spoilers: Steve McDonald discovers the truth! — Steve is heartbroken when he finds out what Tracy has been up to - is this the end of their marriage? (Picture: ITV)

Eventually she comes clean about having a one night stand, and Steve is gobsmacked when he finds out who it is his wife slept with.

But will a devastated Steve ever be able to forgive Tracy for what she has done? Or is this the end of the line for the McDonalds?

Coronation Street airs on Mondays, Wednesdays and Fridays at 7.30pm and 8.30pm on ITV.

Claire is Assistant Managing Editor at What To Watch and has been a journalist for over 15 years, writing about everything from soaps and TV to beauty, entertainment, and even the Royal Family. After starting her career at a soap magazine, she ended up staying for 13 years, and over that time she’s pulled pints in the Rovers Return, sung karaoke in the Emmerdale village hall, taken a stroll around Albert Square, and visited Summer Bay Surf Club in sunny Australia.

After learning some tricks of the trade at websites Digital Spy, Entertainment Daily, and Woman & Home, Claire landed a role at What’s On TV and whattowatch.com writing about all things TV and film, with a particular love for Aussie soaps, Strictly Come Dancing and Bake Off.

She’s interviewed everyone from June Brown — AKA Dot Cotton — to Michelle Keegan, swapped cooking tips with baking legend Mary Berry backstage at the NTAs, and danced the night away with soap stars at countless awards bashes. There’s not a lot she doesn’t know about soaps and TV and can be very handy when a soapy question comes up in a pub quiz!

As well as all things soap-related, Claire also loves running, spa breaks, days out with her kids, and getting lost in a good book.