When a new friend is brutally assaulted, Detective John Droomor is put by chance in charge of the investigation. Although the evidence against the perpetrators seems overwhelming, there is nothing definitive in the case that guarantees justice is served, even more so if some people are willing to twist and betray it.

兩位電影系畢業生決定不計一切代價，完成一部轟動影壇的成功影片；在經歷第一部失敗之作的慘痛經驗後，威爾頓和AJ決定以一家兩人徵信社為題材，拍攝一部紀錄片；私家偵探布恩（麥吉爾費洛）是這家位於洛城的袖珍徵信社老闆之一，由於生意慘澹，徵信社的財務並不樂觀，但布恩決心要改變這個現況；當布恩的合夥人意外身亡後，威爾頓和AJ的拍片計畫亦加入了不可預料的變數，並就此捲入了充滿誘惑、背叛、與謀殺的現實世界中。

They've always been a great team. But now in season four, Frank and Claire become even greater adversaries as their marriage stumbles and their ambitions are at odds. In an election year, the stakes are now higher than ever, and the biggest threat they face is contending with each other.