The best Romola Garai’s thriller movies

On the last day of the first manned mission to Mars, a crew member of Tantalus Base believes he has made an astounding discovery – fossilized evidence of bacterial life. Unwilling to let the relief crew claim all the glory, he disobeys orders to pack up and goes out on an unauthorized expedition to collect further samples. But a routine excavation turns to disaster when the porous ground collapses and he falls into a deep crevice. His devastated colleagues attempt to recover his body. However, when another vanishes, they start to suspect that the life-form they have discovered is not without danger.

The story of a husband who suspects his wife of adultery, and sets out to track down the other man in her life.

A mysterious tale set around a traditional British family on the eve of World War Two. Oblivious to the looming shadow of World War II, the wealthy Keyes maintain a confident façade in the British countryside until daughter Anne becomes an unexpected pawn. Her accidental discovery of secret recordings creates a rift in the family.

Set in the 1970s London during the height of the Cold War when a young spy discovers the disturbing truth about his father's complex past. Based on Alan Judd's 2001 novel Legacy, the second in the Thoroughgood series after 1981's A Breed Of Heroes (adapted by the BBC in 1994). As the three day week, petrol rationing and industrial strife plunge Britain into a state of emergency, MI6 trainee spy Charles Thoroughgood is asked to reconnect with an old university friend, Russian diplomat Viktor Koslov, with a view to 'turning' him. Viktor has his own agenda, though, and reveals a shocking truth about Charles's own family that threatens to derail him, both personally and professionally. He is catapulted into a dangerous personal odyssey to uncover the truth but finds himself drawn into a lethal KGB plot to mount an attack within the UK. His life is further complicated by a relationship with the wife of another agent, which forces him to realise that betrayal can take many forms.