• Executive producer Ken Corday accepts the outstanding drama series award for "Days of Our Lives" as other producers and cast members join him on stage, during the 40th annual Daytime Emmy Awards in Beverly Hills, California June 16, 2013. REUTERS/Danny Mo

Executive producer Ken Corday accepts the outstanding drama series award for "Days of Our Lives" as other producers and cast members join him on stage, during the 40th annual Daytime Emmy Awards in Beverly Hills, California June 16, 2013. REUTERS/Danny Mo (Photo : REUTERS/Danny Moloshok )

"Days of Our Lives" (DOOL) airs heavy-on-action episodes in the week of Sept. 21 - 25. The upcoming segments will see one of the biggest revelations after Marlena is attacked by the serial killer. The murderer who has been on a killing spree in Salem City is finally be revealed. Meanwhile, Rafe make an important discovery. A new character arrives and old ones return. Ben catches Abigail and Chad caught in an intimate moment. Check out the detailed spoilers for the next five episodes of "Days of Our Lives" (DOOL) below. Read on to find out what happens next.

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[Spoiler alert! This article contains spoilers for "Days of Our Lives" (DOOL). Read at your own risk.]

Fans must brace themselves as the identity of the killer is finally uncovered and announced. According to We Love Soaps and Soap Central spoilers for "Days of Our Lives" (DOOL) episodes, the serial killer attacks Marlena next. However, she is able to save her life after being brutally strangled.

But, Chad, once again, becomes the prime suspect in Marlena's assault. The report notes Chad is the first person Marlena sees after coming back to consciousness. Sensing the danger the situation can get him into; Chad immediately defends himself and reveals the reason why he was in the vicinity. What follows after is the biggest revelation of the "Days of Our Lives" (DOOL) 50th Anniversary storyline as the identity of the serial killer is unveiled.

Meanwhile, Paige's father Eduardo arrives in Salem City. Eduardo also happens to be Rafe's father and their first encounter in the town does not go very pleasant. Soon, Rafe realizes Paige is his sister as well. As for Eve, she is really shocked to see Eduardo in the town. Eve continues to mourn the loss of her daughter.

Elsewhere, Ben stumbles upon Chad and Abigail, who are caught in an intimate and warm moment. As for Abigail, she continues to support and defend Chad while all the evidence points against Chad.

A new character Lani Price joins Salem City police force and immediately Abe draws his attention. Furthermore, Andre DiMera makes a surprising return to the town. He is here to offer Stefano support. However, there is another reason for his return, which Andre DiMera is struggling to keep under the wraps for now.

Other highpoints of "Days of Our Lives" (DOOL) episodes airing in the week of Sept. 21 - 25, 2015 sees Jennifer accidentally revealing too much of important information to Clyde. Caroline's condition continues to deteriorate. Steve receives new details about Bo and immediately rushes to save his best friend.

"Days of Our Lives" (DOOL) airs weekdays on NBC. Stay tuned for more spoilers. Meanwhile, let us know who you think is the serial killer in the comment section below.