They've both seen behaviors that don't seem quite normal for him, and as they share their concerns for Bill (Don Diamont), Liam (Scott Clifton) could accidentaslly out Bill's big secret to Katie (Heather Tom) on The Bold and the Beautiful.

Since his return home after being held by Quinn (Rena Sofer), Liam has found himself shockingly not supported by his father to the same extent he always was. Whereas he had been the chosen son before, with the titles and good ideas for Spencer, and Bill's full support behind his relationship with Steffy (Jacqueline MacInnes Wood), he is now cast aside for Wyatt (Darin Brooks), who has everything Liam once had. This has been difficult for Liam to reconcile, and he has a hard time with why his father is so insistent on making sure Wyatt is the one who feels more important.

Meanwhile, Katie has been no stranger to realizing that Bill isn't home as much anymore, and her desire to drink is strong again, which means she knows someone close to her is betraying her. Despite countless denials from both Bill and Brooke (Katherine Kelly Lang), a part of her suspects they are sneaking around behind her back again. Now, after a meeting with Liam, she could learn just how much they are, and how much Bill is the one who has been spearheading the adultery.

Liam came across Bill's secret bedroom built into the back of his office, which was covered as a space for naps. However, when he revealed he found an earring on the bed (Brooke's), it was then claimed the room also allowed for Bill and Katie to occasionally indulge in some alone time they couldn't really get a lot of at home. When Katie starts expressing some of her concerns to Liam, he could make a comment about the bedroom, thinking it is innocent and she knows about it. However, he could wind up instead exposing the truth to Katie, and now, she will need to decide what to do as a result.

The Bold and the Beautiful airs Monday-Friday at 1:30 p.m. on CBS.