PREVIEW: Gold Diggers (Walter Presents), Channel 4

Starring Darya Moroz, Mariya Fomina, Sofya Ernst, Sergey Buronov, Sabina Akhmedova, Alexandr Kuznetsov, Vladimir Mishukov and Igor Gordin. In Russian with English subtitles.

Walter Presents - which showcases the best foreign language drama series from around the world - continues with this Russian thriller set in the luxurious world of the Russian social elite, a world where money dictates everything. Marina Levkoeva appears to have it all as a socialite and mistress of a wealthy and well-connected businessman, Igor Dolgachev.

Or so it seems to a friend from her school days, Dasha Smirnova. Dasha comes to visit Marina, but she has ulterior motives of which Marina knows nothing, and the first chance she has, Dasha secretly strikes to wreck Marina's set-up. When Igor receives information about Marina, he takes action, then events take a shocking turn.

To coincide with the launch of the full series on All 4 from Friday 16 July, the first episode transmits on Channel 4 on Tuesday at 11pm.