When Riggs and Murtaugh investigate a high-profile case surrounding the murder of a young model, they uncover a vicious secret behind the locked mansion gates of one of LA's wealthiest families. Riggs gets a jolt from his past when he discovers that ... (more)an old friend of his wife has ties to the case. Murtaugh is shocked to hear that his daughter is sending promiscuous photos to her new boyfriend.