Dennis was a frustrated stay-at-home husband - bitter about his wife Alison's career success, and deeply jealous of the handsome, successful men she worked around all day.
But was that really jealousy? Or something else.
Because Dennis' fixation on Alison possibly cheating on him had gone from a concern, to an obsession. To the point at which he was finding himself actually EXCITED at the possibility.
Things come to a head - literally - when an angry and frustrated Alison decides to give Dennis exactly what he's been obsessing about; and knowing her husband's hiding out and spying on her, brings home her sexy, handsome secretary to make every one of Dennis' fears - and obsessions - come true.
Trapped in the bedroom, watching his wife cheat on him with a sexy younger man, should have driven Dennis made with fury. Instead, he's harder than he's ever been, and anxious for his turn.