Valley's Karl Cole to be found unconscious at the bottom of the stairs

Sunsetvalley's Karl Cole finds himself in trouble when he trips and fall down the stairs at the RR. Karl hasn't been coping from his split with Piper and will seek comfort from the bottle next week. When Karyn Green returns home from hospital next week, Karl eagerly tries to talk to Piper, however he's met with an angry Piper who tells him to get lost. Karl makes a show of himself at the RR, hurling abuse at Andrea in front of Liz and Charlene. Its not long before Karl trips down the stairs, and is knocked out cold. Will Karl be okay? 
Meanwhile Piper puts her focus on her sister Karyn, and insists that they attempt to sue the prison for making Karyn ill. Karyn is astonished to learn the extent to which Piper and Karl have ended their relationship, prompting Karyn to question Piper's motive's for suing the prison. Is Piper venting over Karl? Karyn makes it her mission to get Karl and Piper back on track.