An American woman travels to London to defend her sister after she becomes the prime suspect in her roommate's brutal murder.
Stan warns Grace not to attend Molly's memorial; Natalie becomes suspicious of James' evasive behavior; Molly's brother has a confrontation with one of the prime suspects in her murder.
Bullies attack Grace on social media after Molly's murder becomes a worldwide story; Prince Theo worries that his connection to Molly may become public; James gets blackmailed with incriminating photos.
Natalie learns that Gwendolyn may be biased in her investigation of Grace; a past indiscretion comes back to haunt Detective Sergeant Bruno; Grace encourages Luc to move ahead with his art show.
Grace is bombarded by paparazzi as she exits the police station; a good Samaritan shows up to her rescue but she soon suspects is intentions aren't so pure; Natalie enlists the help of Detective Bruno to find her sister; Patrick goes undercover at a swank sex club in hopes of finding his sister's...
Gwendolyn puts pressure on Luc to give up Grace, but Luc sticks to his story about being with Grace all night; Grace teams up with Roz to plant evidence on a new suspect.
Natalie begins to doubt Grace's innocence as the case against her sister mounts; Stan tips off the press that Molly worked as a prostitute; Charlotte confronts Prince Theo as his lies begin to unravel.
Grace agrees to undergo hypnosis at Stan's urging, to rediscover why she may have blacked out; Natalie goes to Bruno for help.
British tabloids shred Grace as she stands trial for Molly Ryan's murder; Stan works to cast doubt on Grace's guilt while Natalie and Bruno search for new evidence to prove her innocence.
The jury deliberates Grace's fate; Detectives Bruno and Pike attempt to find a link between the Molly Ryan case and the Hertfordshire murder; Stan and Natalie work to buy time; Patrick believes that Prince Theo is the murderer.