'Castle' season 8 episode 9: Castle and Beckett venture into the world of competitive acapella

 facebook.com/Castle

There has been a lot of news about "Castle's" return as there has been initial confusion about the show's midseason premiere date. But it has been confirmed that the ABC series will return next month with an episode called "Tone Death." And not only will the episode show Castle (Nathan Fillion) attempting to do his best as he tries to hit the right notes, but it looks like he and Beckett (Stana Katic) are truly back together.

Here is the synopsis for "Tone Death":

"When a body is found in the theater of Martha's latest show, Castle and Beckett's investigation leads them into the unexpectedly dangerous world of competitive acapella."

"High School Musical" alum Corbin Bleu will guest star in the episode, and according to Entertainment Weekly, the actor will be playing Hunter Washington, the leader of a rival acapella group.

In the first promo for the episode, Castle is seen attempting to beatbox as he jams with the acapella group. Meanwhile, the latest promo shows Castle and Beckett flirting with each other as they secretly have gotten back together while pretending to be broken up for LakSat's sake.

Co-showrunner Alexi Hawley told TVLine that the two have a lot of "lost time to make up for" so expect some sweet and intimate Caskett moments in the episode. Aside from tackling the acapella case, the two will also enter a courtroom for the first time in the series and Hawley told the website that viewers will see a trial based on a case. Castle will be testifying in court, and this will take viewers on a trip down memory lane.

"I think it will be a treat for our longtime fans," said co-showrunner Terence Paul Winter, "because it refers to several things that have happened in the last few years."

"Castle" returns on Feb. 8 on ABC.

News
Marriage is the safest relationship, latest figures suggest
Marriage is the safest relationship, latest figures suggest

Of the eight children murdered during lockdown, 7 were killed thanks to the actions of a step parent or new partner.

Abortion rises in Northern Ireland for fourth year running
Abortion rises in Northern Ireland for fourth year running

Abortion was legalised in Northern Ireland in 2019.

Churches helping millions of Brits get by as living costs remain high
Churches helping millions of Brits get by as living costs remain high

Across the country, people are looking to the church for help.

Isaiah 41:10 is YouVersion's Bible verse of the year
Isaiah 41:10 is YouVersion's Bible verse of the year

Isaiah 41:10 had the highest international engagement on YouVersion during 2025, while in the UK it was Jeremiah 29:11 that topped the list.