Edith is finding her irritating sister Joan very difficult, and Roger, impatient to help Phil sell his house, decides to help by checking his roof for dry rot.
The investigation zeroes in on a prime suspect who proves surprisingly adept at manipulating a volatile situation to his advantage.
Sean Lock and Rob Beckett take on special guest team captains Alan Carr and Sarah Millican. Nick Mohammed joins Susie Dent is in Dictionary Corner, while maths whizz Rachel Riley looks after the letters and numbers.
Hitting a dead end, Holden suggests a bold plan to draw the killer out. Bill's family faces more scrutiny. Wendy chafes as her job begins to shift.
Amid sweeping changes at the BSU, Holden deals with severe repercussions from his close encounter with Ed Kemper.
Bill's devastating family situation spills over during his interview with Holden's holy-grail subject: Charles Manson. Wendy's new romance heats up.
Bill gets drawn into a horrifying crime that hits close to home. Holden receives an intriguing offer while in Atlanta to interview a pair of killers.
Bill gets drawn into a horrifying crime that hits close to home. Holden receives an intriguing offer while in Atlanta to interview a pair of killers.
The FBI officially sends the BSU to Atlanta to investigate the missing and murdered children. Wendy second-guesses her interview methods.
Red tape hinders Holden's plan to narrow his suspect pool. A weary and heartsick Bill tries to connect with his son. Wendy rethinks her relationship.
Holden develops a controversial profile in the Atlanta slayings. Wendy conducts her first interview and finds being on the front lines suits her well.
To glean insight into the elusive BTK killer, Bill and Holden interview the Son of Sam, who makes a startling admission.
Asia finds herself on the receiving end of a viral proposal. New recruits discuss goals at a gang orientation. Dr. Haddassah turns a wedding toast into a teachable moment.
Could paranormal activity be explained by beings entering our world from other dimensions? According to some Ancient Astronaut theorists, entities that have been described as ghosts, angels, and extraterrestrials are actually visitors from unseen realms — and they are among us even now.
Guests: Sen. Sheldon Whitehouse, Carl Hulse, Betsy Woodruff, Rick Wilson Michael Render
The Art of Architecture is an exploration of the design and aesthetics of some of the world's most iconic buildings and the inspirations of the architects behind them. This fascinating documentary series provides an inside look at some of the greatest works of architecture in the world, from Lambeth Palace Library to Paris' Holy Trinity Church.
This anthology series of terror features diverse characters facing primal fears in spine-chilling situations that stretch past daily routine.