A few years ago I watched the excellent Israeli series Pillars of Smoke (תמרות עשן)
Here's a summary of the plot from IMDB:
A sudden inexplicable disappearance of 36 members of an ideological community settled in northern Israel, brings Leah Kafka, a fresh police investigator from the city who specializes in cults, to cooperate with the local authorities and investigate what turns out to be a terribly convoluted mystery. All entangled in a situation feared to impact the state's security and secrecy, and the lives of innocent people who got in the middle of intrigues and conspiracies, Leah and the local residents go on a tortuous journey of illusions, secrets, enlightenments and uncertainty, in which no direction, relationship or logic is kept intact.
I thoroughly enjoyed it but never found a version on DVD or streaming that included English subtitles so I can share it with friends and family who are not as fluent in Hebrew as I am. I think this show could be a big hit on ChaiFlicks!