Coffin Rock (2009) ★★★★☆

👍 IMDb 5.3/10 (1.4k)     🍅 Rotten Tomatoes 70%    
15 | 1h 32m | Drama, Thriller | UK/Australia/New Zealand
Director Rupert Glasson
Writer Rupert Glasson
Stars Robert Taylor, Lisa Chappell, Sam Parsonson

A woman unable to conceive a child with her husband, despite 15 months of trying, makes the drunken mistake of sleeping with a young stranger. The stranger then goes to terrifying lengths to prove his paternity.

 

Knife-edge.