ITV3 +1 (Freeview) Sunday

The detective's friend (guest star Martin Shaw) hosts a cocktail party in Cornwall, where a priest chokes to death - and weeks later another guest dies in similar circumstances

Antoine Verlaque and Marine Bonnet put their weekend getaway plans on hold when there is a murder at the local university. Mystery, with Roger Allam and Nancy Carroll

Now working as a consultant for the police, Marine helps Antoine and Helene investigate the death of an aristocrat found dead at his crumbling chateau

A businessman on board the Orient Express asks fellow passenger Poirot for protection, but is later found dead. Hugh Bonneville and David Morrissey guest star

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