Through March 31,

Jake Gyllenhaal was already a movie star in 2012, when he first set foot on a New York stage, playing a ne’er-do-well in Nick Payne’s “If There Is I Haven’t Found It Yet.” In 2015, when Gyllenhaal made his Broadway debut, it was as a bumbling lover in Payne’s brainy-romantic “Constellations.”

“A Life” is their latest collaboration, with Gyllenhaal as a man whose heart is too mired in mourning to love the way he needs it to. A monologue, it’s part of a double bill directed by Carrie Cracknell, in previews for an opening on Thursday, Feb. 14, at the Public Theater in Manhattan.

The other half of the program is “Sea Wall,” written by the Tony Award winner Simon Stephens and starring Tom Sturridge — Gyllenhaal’s co-star in the new Netflix movie “Velvet Buzzsaw” and a veteran of Stephens’s savage “Punk Rock.” Stephens here is far more tender, yet no less aware of mortality: Even in a sun-dappled life will come a moment when the ground falls abruptly away. LAURA COLLINS-HUGHES