therein

There's the rub. (old-fashioned, old-fashioned)

something that you say when you are explaining what the difficulty is in a particular situation. You can't get a job unless you have experience. And there's the rub - how do you get experience if you can't get a job?

See also: rub

Thereby/Therein hangs a tale. (British & Australian, humorous)

something that you say when you have been asked about something that needs a long explanation. 'So what were you doing in Nick's garage at three o'clock in the morning?' 'Ah, thereby hangs a tale.'

See also: hang, tale

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there's the rub

here is the difficulty. You can't get a job unless you have experience. And there's the rub – how do you get experience if you can't get a job?

Usage notes: also appears as here's the rub and that's the rub: The factory is ready to go, but here's the rub – there's no market for the products.

See also: rub