Coronation Street 's Stephen Reid takes dark action against Carla Connor next week that could leave her dead.
His plan to set her up and make her seem too unfit to run the factory, having been drugging her for weeks, escalates when he leaves her life on the line.
Stephen took aim at Carla recently after she showed him up in front of some old business associates.
The character was helping out at the factory and working in packing, but he'd made it seem to them that he was running the factory.
Since then, Carla has been furious with Stephen for trying to have a say in her business, and also trying to do deals behind her back while making it seem like he is in charge.
Stephen began drugging Carla last month with LSD in the hops she would show herself up at work, and appear unwell.
Carla has battled with her mental health in the past, suffering psychosis a few years ago, and of course the symptoms from her being drugged have left her and others believing she could be struggling once more.
With everyone concerned about Carla's erratic and odd behaviour, Stephen continues to drug her next week while messing up her plans for the business.
Wanting to portray her as being out of control, Stephen continues his dark behaviour - resulting in Carla speaking with her doctor.
Carla believes she may have been experiencing episodes with her mental health like before, except she admits it feels like she is on drugs at the time of each episode.
Dr Gaddas prescribes her with diazepam, and when she returns to the factory Stephen makes a dig about making sure she is on top form.
Carla retaliates by having him make tea for their American guests, so in revenge Stephen gives her a double dose.
As the meeting draws to a close and the LSD kicks in, Carla’s behaviour becomes erratic but the team are soon celebrating.
Carla is struggling though, and she barks at the girls to get out of her factory - leaving Stephen thrilled with what he has done.
Things take a deadly turn later in the week though, just as Carla has another chat with Dr Gaddas who suggests she takes an extended break and goes back on her antipsychotic drugs.
Stephen has taken Carla's keys though, and lets himself into her flat as she sleeps off the medication.
He soon does the unthinkable, and drops her keys back into her bag before heading into the kitchen and turning on the grill.
Carla stays asleep unaware of the danger she could be in, if the grill causes a fire or if it's a gas grill.
But will someone find Carla in time, or has Stephen just claimed his third murder victim after killing Leo and Teddy Thompkins in the past year?
Coronation Street airs Mondays, Wednesdays and Fridays at 8pm on ITV1 and ITV X.