Triangulation by Cole McCade

Less than a day.
Less than a day of peace, of calm, of comfort before the white rabbit returns to tear Malcolm and Seong-Jae’s lives apart. An eerie video presents them with a deadly ultimatum, which leaves our intrepid pair racing to discover the identity of the latest victim — and desperate to protect their families from the threat hanging over their heads.
As tension rises to a screaming point and conflict comes to a head between Mal, Seong-Jae, and Aanga Joshi, the detectives dive deeper into the pasts of their remaining suspects, searching for the clue that will unmask the white rabbit once and for all.
Two men. One killer. And that tenuous connection to the darkness of Seong-Jae’s past, now cast into doubt as Sila’s true identity comes clear. For Malcolm and Seong-Jae, there seems no escape from this endless night.
Unless they trust each other.
And trust the love between them to light the way.