Castle Season 7 is getting more and more interesting. After last week, this Monday night's episode 15 will make viewers hang on to their seats for fear that Richard has finally gotten mad over Kate's absence. Given that his partner and lady love is being held captive by someone, Richard's dark side will start to show and his drive to pull any merciless acts will surely surprise fans. Don't miss the brand new episode. Watch Castle season 7 episode 15 stream using the free online stream link provided at the end of this post.

Note: This feature contains spoilers on the upcoming episode of Castle Season 7. Kindly read at your own risk.

Previously, Kate Beckett got separated from Castle and the team when she got kidnapped. And while Michael Bourdeau also known as Jerry Tyson was released from custody due to the lack of sufficient evidence, Dr. Kelly Neiman gave Rick alibis for Kate's abduction. With little clue on where Kate is being held captive, a desperate Castle is willing to take extreme measures just to save Kate. The 12th Precinct will also get busy as the serial killers are out to claim the lives of their next victims. Watch Castle season 7 episode 15 online through the free online stream link found below.

Sneak peeks for the upcoming episode have been dropped by ABC since last week and so far things are not looking great for Richard. The former author will go through a roller coaster of emotions as he tries to get ahead of the killers and save Kate from her kidnappers. Spoilers also hint that because of his aggressive behaviour, Castle might end up in jail. Does this mean he is going to kill someone tonight? Find out by tuning in on ABC at 10 p.m. EST. Watch the show online using the Castle season 7 episode 15 free online stream link at the bottom.

The official synopsis of Castle season 7 episode 15 reads: "In the second installment of the Castle two-parter, stakes rise as the 12th Precinct matches wits with serial killers Jerry Tyson (3XK) and Dr. Kelly Nieman. With the clock ticking, Castle and the team must crack the case before the killers claim their next victim."

"Reckoning" is set to air this Monday night at 10 p.m. EST on ABC. Watch Castle season 7 episode 15 stream using this free online stream link here.