Molly Quinn as Alexis Castle and Nathan Fillion as Richard Castle in "Castle".Facebook/Castle

Richard Castle (Nathan Fillion) will face an attack in the fifth episode of "Castle" Season 8. The sequel, titled "The Nose", will take viewers into another mysterious murder case.

"When a priceless work of art is stolen and its transporter murdered, the mystery novelist and Kate Beckett (Stana Katic) must work with the key witness to track down the painting and sniff out the killer," read the official synopsis.

CLICK HERE to watch Episode 5 live online on ABC at 10 p.m., on Monday, 19 October.

The episode will also feature Toks Olagundoye as the security specialist Hayley Shipton, but this time around she will not working with Richard. The former MPS cop will assist the new captain in the 12th Precinct.

Meanwhile, the promotional photos of the upcoming sequel also hints at an attack on the title character and his daughter Alexis Castle (Molly Quinn). Two of the images uploaded on TV Line shows a man holding a gun and treating the private investigator.

However, Richard will also get some good news about his relationship with Beckett. The key witness in this week's case informs the protagonist that the captain is still in love with him.

The followers of the crime drama can also expect some interesting sequences of Detective Javier Esposito (Jon Huertas), Detective Kevin Ryan (Seamus Dever) and Martha Rodgers (Susan Sullivan).

The guest stars to appear in the show includes Stephnie Weir as Mia Laszlo, Aubrey Deeker as Lorenzo, Kevin Joy as Graham Fletcher, Charles Mesure as Liam Hollister.

ABC will air "Castle" season 8 episode 5, titled "The Nose", at 10pm, on Monday, 19 October.

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