An estranged couple decides for a last-chance counseling retreat in a forest just to meet a therapist who reveals their secrets that should rather have remained buried

But that goes back to the original problem, they shouldn't be confronting each other, they should be working together to survive. They are estranged and they disagree on everything. They have to learn throughout the ordeal how to work together.

An estranged couple decides for a last-chance counseling retreat in a forest just to meet a therapist who reveals their secrets that should rather have remained buried
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This re-write gets away from what makes you story interesting. You have a bickering couple going to therapy in the woods, they are attacked by a madman and in order survive they have to do the last thing they really want to do; work together.

The irony of your story is, being chased by the madman does what the therapy couldn't, it gets to work together.

This logline version gets away from that.

This logline kills it!!!

If I have to pick one : Estranged couple decides for a hiking therapy where a masked psychopath with a killer dog captures them. They are now forced to confront each other to survive.

Thanks Rutger!

FFF - how about you, would you suggest one of the loglines from above or an alternate version for them?

The SIN ? hmmmm - An alienated couple and one (the protag) has an extremely high life Insurance. The other one leads all of his wife?s/flings into the Woods where his partner in crime kills them. Sorry Robert, it's the same thing but only different!

The (incomplete?) logline I like best:

An estranged couple decides for a counseling retreat in the woods just to meet the therapist of their nightmares.