Despite being tempted to call his dealer, Guppy is determined to steer clear of cocaine. Meanwhile, a couple called Tom and Lowri are rushed to hospital after a suicide attempt. Lowri has been suffering from a brain tumour and has tried to take her own life by filling her car with fumes.
When Stitch realises that Tom tried to stop the suicide, he is rude and dismissive. Guppy tries to comfort him, but returns to the wards to find that Stitch has stopped attempts to revive her. With Lowri dead, Stitch has a dig at Tom for causing her unnecessary pain by intervening and calling for an ambulance. As Tom views the body, Stitch twists the knife by telling him he should have been thinking of himself.
Elsewhere, Selena is having a bad day dealing with two bickering sisters, Emma and Katie, who have been in a car accident. Selena blows up at them but, before Harry can take her aside, Katie collapses from a head injury. Together, Harry and Selena work to save her life.
Later, Guppy arrives at Tom’s house and is shocked to find that he has hanged himself in the barn. Despite desperate attempts to revive him in resus, Tom is declared dead and Guppy has an argument with Stitch about the incident. Everyone turns on Stitch, and Maggie asks him what happened to his feelings. Upset, Guppy rings his dealer for more cocaine.